With its built-in USB / HDMI hub and a small fan to keep temperatures in check, Sharge's Disk Pro SSD is one of the more interesting (and generally useful) external storage drives in recent memory, easily earning a spot on our Best External SSD list. And the company is following that success up with a more DIY-focused Disk Pro 2, which lets you install your own M.2 drive (supporting 2230, 2242, and 2280 sizes and capacities up to 8TB), while adding greater fan flexibility, media card slots, and an HDMI port that's capable of more bandwidth – depending on the model you choose.

Sharge is offering the Disk Pro 2 in two varieties. There's the Lite model, with HDMI 2.0 (4K@60 Hz) and a 5W minimum operating power, and the Disk Pro Ultra (which we have in for testing) with HDMI 2.1 (4K@144 Hz or 8K@30 Hz), a lower 1.5W minimum power draw, and a faster card reader. Below is the full list of differences, according to the product page. The company even lists the internal chips, some of which you can see through its transparent top.

The Ultra model is likely to appeal more to professionals and gamers, offering faster card transfers and higher monitor refresh rates. But the main limitation here is the overall bandwidth, as both models are capped at a 10 Gbps interface, just like the original Disk Pro. That makes either model better as kind of a travel-friendly Swiss Army hub than something you'd want to use as your primary hub / dock all the time. Because any modern M.2 drive can saturate all available throughput by itself, before you connect any video or USB devices. But there's no denying the utility of carrying around a pocket-friendly SSD that also lets you connect to a monitor or TV, plug in a couple extra peripherals, and empty your SD cards without an extra hub, adapters, or cables.

At 3.65 x 2.33 x 0.531 inches (92.6 × 59.2 × 13.5 mm) without the cable, the Disk Pro 2 is slightly thicker and longer than the original Disk Pro, but still smaller than some standalone drives. Again, with its size and transparent top, it reminds me of an old-school cassette tape.

One thing that has definitely improved over the original Disk Pro is that Sharge has made the USB-C cable removable. This is good in part because you don't have to worry about the cable breaking over years of use. But also, particularly if you're going to use the drive's hub capabilities, you might want something longer than the included cable's sub-nine-inch length. And when necessary, you might want to plug the drive into a USB-A port. So having the option of using different cables is a big plus.

The cable is also designed to function as a lanyard, which can be handy. But it's held in place solely by the USB-C connection, so I wouldn't trust it for much more than hanging the hub up somewhere at home, so you know where it is when you need it.

In terms of ports, starting from the bottom edge, you get the main USB-C port, capable of passing through up to 80W of power, a full-size HDMI port (2.1 on the Ultra model we're testing or 2.0 on the lite model), a USB 3.0 Type-A port, and a 10 Gbps USB-C port that can handle up to 100W of power input (and pass through up to 80W for charging a laptop or other device). The previous Disk Pro included a second USB-A 2.0 port here as well, but it's been ditched in favor of the removable USB-C cable, which I think is well worth the sacrifice.

On the opposite (top) edge, Sharge has added an SD card slot and a microSD card slot. These are capabilities the original Disk Pro didn't have, which make the newer model a lot more versatile for content creators. Just remember the Ultra model offers up faster read and write speeds for the card slots.

Around back, there's not a lot to see save for the fan intake, but the back is also magnetic, letting you snap the drive onto smartphones that support MagSafe devices or Qi2 magnetic peripherals — it's just a physical mount, though, not receiving power. I've also found this feature handy for sticking the drive to a refrigerator or other iron surface so I always know where it is when I need it.

It's also worth pointing out that the fan in the Disk Pro 2 is smaller than on the Disk Pro. But there are larger cutouts for air intake on the sides for when the hub is lying on a table or desk, and the Pro offers a three-mode switch (off, on, and turbo), whereas the original's switch had two settings (auto and on). I appreciate the active cooling, and it will certainly be helpful if you're using most of the hub's ports and the SSD at the same time. But if you're mostly using the Disk Pro 2 solely for basic, bursty storage tasks, the 10 Gbps interface and an efficient SSD aren't likely to get warm enough to require active cooling. Of course, that will heavily depend on which drive you install in the enclosure, as well.

Testing with Lexar's 710 SSD

Sharge sent along its Disk Pro 2 Ultra with a Lexar 710 M.2 SSD (a PCIe 4.0 drive that's capable of about 5x the bandwidth of the hub itself), and installing it is about as straightforward as you'd expect. Use the small included screwdriver to remove a tiny screw on the side, and the SSD cover lifts off. Loosen the drive anchor post, install the SSD, tighten the post, put the cover back on, and reinstall the cover anchor screw on the side.

You can, of course, install your SSD of choice, and below the 10 Gbps interface cap, your performance will vary by drive. Still, since the company sent along the Lexar drive, we ran a couple of our external storage benchmarks, and the Disk Pro 2 Ultra performed well for an SSD in this class, just like the original Disk Pro.

Trace Testing - PCMark 10 Storage Benchmark

PCMark 10 is a trace-based benchmark that uses a wide-ranging set of real-world traces from popular applications and everyday tasks to measure the performance of storage devices.

The Sharge Disk Pro 2 Ultra does exceptionally well here, beating everything save for Corsair's USB4-based EX400U. Impressively, the 10 Gbps drive even beat the 10 Gbps X10 Pro on this test, proving available bandwidth isn't everything when it comes to drive responsiveness.

In this real-world bulk transfer test, Sharge's Disk Pro 2 Ultra lands in a comfortable fourth place, behind 40 Gbps and 20 Gbps drives, and one spot behind the 10 Gbps Crucial X9 Pro drive on reads. But on writes, Sharge's enclosure, running the Lexar SSD, again beats everything in this chart save for Corsair's USB4 drive.

Synthetic Testing CrystalDiskMark

CrystalDiskMark (CDM) is a free and easy-to-run storage benchmarking tool that SSD companies commonly use to assign product performance specifications. It gives us insight into how each device handles different file sizes. We run this test at its default settings

Lastly, in this best-case-scenario synthetic test, the Disk Pro 2 lands in fifth place when it comes to reads, but fourth place on writes.

Again, the Disk Pro 2's performance on benchmarks will depend largely on what drive you put inside it. But it's clear that the SSD enclosure is capable of performing well, despite its 10 Gbps bandwidth limitations.

Pricing and Bottom Line

If all you really care about is dropping in a drive and moving some files around, there are plenty of cheap 10 Gbps enclosures, often on sale for $20 or less. But if you travel a lot with tech and like the idea of a drive enclosure that includes a data and video hub with PD power passthrough, the Disk Pro 2 offers a lot to like, with the Ultra version we tested capable of handling video output bandwidth as high as 8K at 30 Hz (or 4K at 144 Hz). And the inclusion of card reader slots makes the enclosure even more useful for creators on the go.

It's far from cheap, at $109 for the Ultra version we tested or $79 for the Lite version, which is still capable of 4K video at 60 Hz, but won't play as well with phones, due to a higher minimum power draw. But Sharge's devices often go on sale, and when this was written, the Late model was selling for $66.51 and $80.91, directly from the company. This is technically a pre-order price, as the enclosures are expected to start shipping on October 15th.

There are also enclosure / hub combos on Amazon and Newegg that promise similar functionality for less. But the ones I saw have generally poor reviews, are larger than the Disk Pro 2, and none of them look as pleasing or are as feature-packed as Sharge's design, with its transparent cover, active cooling, and MagSafe-compatible back. For those looking for portable connectivity and up to 8TB of storage in one device on the go, the Sharge Disk Pro 2 is in a class of its own, and easily earns a spot on our best SSD and hard drive enclosure list.

The Goodram PX700 is a budget PCIe 4.0 drive that delivers everything you need: good performance, great power efficiency, and all in a single-sided package that runs cool. Sometimes it really is as simple as picking one drive to meet whatever your storage needs are at the moment. It’s not the first model that comes to mind for this segment, but in our testing it performed better than expected as a good drive that may otherwise run under the radar.

Goodram is not a new or no-name company, even if the “good RAM” moniker seems a little too on the nose. Instead, it’s a memory assembler in the EU with quite some history. This, in fact, makes it more approachable in comparison to a lot of the new names we have seen on AliExpress and increasingly on Amazon. We expect reliability or at least good support from the company, and the TBW on this one seems to reflect that this isn’t an ultra-budget drive.

On the contrary, performance was not just what we expected – considering we’ve reviewed many drives in this segment, many with the same or comparable hardware – but above. Sometimes only by a small amount, but the gaps are real. Anywhere performance mattered, it delivered. One expects trade-offs for that, but in fact the PX700 is very power-efficient, and the drive provides an excellent storage experience. The only downsides are sustained write performance – which is of little importance in most cases – and, unfortunately, the price. At the right price point, this would be a great pick for any device.

Goodram PX700 Specifications

The Goodram PX700 covers the most popular capacities of 1TB, 2TB, and 4TB. Smaller drives can be popular for upgrades and basic boot usage, especially with how prices are now, but modern flash scales best at 1TB and up. 8TB drives are great as a larger storage solution but require a significant investment. The PX700 sticks to what will sell, predominantly 1TB and 2TB. At the time of review, these are priced at $346 and $418, respectively. These prices are high and probably point to a lack of stock more than anything else. While the 1TB price is double what it should be, at 2TB a drive of this type should be closer to $300. Naturally, one has to take into account the pricing volatility in an SSD market besieged by a NAND shortage, but we recommend looking in that range for this drive or one comparable to it with similar or the same hardware.

The drive is full-fledged Gen 4 with performance up to 7,400 / 6,500 MB/s for sequential reads and writes and up to 1 million random read and write IOPS at 4TB with only 820K write at 1TB/2TB. This is standard for the class and is more than enough performance for everyday tasks, gaming, productivity workflows, and more. The drive has the standard five-year warranty with up to 600TB of writes for every TB. The last part of that is worth a second glance because it indicates this drive can come with TLC rather than QLC flash, since TLC, aside from being faster, has better endurance than QLC. However, we have reasons to believe our sample has QLC, which we will point out where the evidence supports that reasoning. We want to emphasize that you should not assume what flash a drive uses based on TBW alone.

Goodram PX700 Software and Accessories

Goodram does not offer any specialized or custom software for its SSDs. You will have to rely on third-party solutions. Software for SSDs essentially falls into three categories: health management, performance, and data backup. SSD toolbox applications from manufacturers will usually cover the first two, with, typically, an OEM version of Acronis True Image for the last. For free alternatives, we recommend CrystalDiskInfo for health information, CrystalDiskMark for basic benchmarking, and MultiDrive for data backup and imaging. MultiDrive is made for Windows and has a bootable WinPE image, so for other operating systems you can opt to use Clonezilla instead.

Goodram PX700: A Closer Look

The PX700 is a single-sided drive at all capacity points. This makes it compatible with a wider range of systems and, if you need to cool the drive, it’s easier to tackle just one side of components. As it turns out, the drive runs cool enough that you probably don’t have to worry about this – check the Power Consumption and Temperature section below – but it’s still worth pointing out. The data on the rear label is standard, but we do want to say a little bit more about the listed manufacturer.

Wilk Elektronik is a Poland-based memory company, which makes this interesting, as that means the PX700 is a European-assembled SSD. Goodram covers the mainstream parts and IRDM enthusiast, although this is the first SSD from them that we’ve reviewed. As we are going to dig into the hardware in this section, we will say that the drive's silicon is sourced from Asia, as with virtually every SSD. If we say a drive is made in Poland, this means the drive is assembled, tested, and covered by warranty in Poland with an EU anchor. For some, that might be a positive factor in any purchasing decision.

Identifying the hardware here is half simple and half challenging. The controller is clearly the Maxio MAP1602, a four-channel, DRAM-less part that’s been a budget champion for quite some time. There is not much mystery there aside from maybe this being a later revision, typically used for higher capacities.

The flash is more difficult. We can ascertain that these are 512GB NAND flash packages from the “512G” – given modern flash is 1Tb or 128GB, four dies per package for a total of sixteen dies. That’s perfect for maximizing performance out of this controller. The “W2533” is likely the manufacture date of week 33, year 2025. All this indicates is that this is, at least, not older flash, although we already know it has to be 2,400 MT/s at a minimum to hit the specified performance.

It makes a lot of sense for the PX700 to use TLC flash, though, given the TBW and the fact that we’ve been seeing this controller with 232-Layer Micron TLC more frequently lately. The Biwin Black Opal NV7400 comes to mind. However, Goodram has access to YMTC flash, and that includes QLC. YMTC rather than Micron QLC is more likely, given the latter is in high demand in enterprise. Normally, you could use certain utilities to identify the flash, but firmware for this controller is often encrypted to avoid revealing the flash ID. It’s still possible to get around this with leaked MP tools, but otherwise the best way to identify it is simply to look at the performance. We’ll be doing that in this review with comparison drives to help back up the investigation.

MORE: Best SSDs

MORE: Best External SSDs

MORE: Best SSD for the Steam Deck

Comparison Products

The Goodram PX700 is in a tight spot with ample competition in today’s market. This has been true for some years now, but some more recent releases have turned up the heat. These would include the Sandisk WD Blue SN5100 with its fantastic random read latency, the Crucial P310 with surprisingly good all-around performance, and even the Samsung 990, which was a very late arrival. Existing drives with comparable hardware to the PX700 include the Acer FA200 with QLC flash plus the Biwin Black Opal NV7400, Addlink A93, and Inland TN470 with TLC. The last of these also uses a Phison controller rather than the more common Maxio MAP1602. Lastly, we have the budget-minded Kingston NV3, which is always looming in the background.

Trace Testing — 3DMark Storage Benchmark

Built for gamers, 3DMark’s Storage Benchmark focuses on real-world gaming performance. Each round in this benchmark stresses storage based on gaming activities including loading games, saving progress, installing game files, and recording gameplay video streams. Future gaming benchmarks will be DirectStorage-inclusive and an evaluation for future-proofing is included where applicable.

The PX700’s 3DMark results are spot-on for a drive of this caliber, hanging out at around 40µs for latency with bandwidth over 700 MB/s. This level of performance is excellent for gaming, and the only drive that wouldn’t fall into that category is the NV3. The NV3 is still fast enough for a games drive and remains a good budget choice, but there are faster options like the PX700. We want to emphasize that the PX700 is better than it looks in this lineup because it’s effectively within range of all drives but one, the WD Blue SN5100.

Among the QLC-based drives, the WD Blue SN5100, 990, and P310 all notably score near the top. The BiCS flash in the first drive is known for its responsiveness and, yes, it will give you a small edge with game load times. However, the 990 is right up there with the P310, which means there is no shortage of viable options. Most slower drives, from a gamer’s perspective, will be last-generation or slower PCIe 4.0, which means it’s not hard to find drives that are very fast for games. This means that the deciding factor might lie outside of 3DMark performance, such as drive reliability.

Trace Testing — PCMark 10 Storage Benchmark

PCMark 10 is an industry standard trace-based benchmark that uses a wide-ranging set of real-world traces from popular applications and everyday tasks to measure the performance of storage devices. The results are particularly useful when analyzing drives for their use as primary/boot storage devices and in work environments.

While the PX700 is merely mediocre against the competition in 3DMark – its absolute performance is quite good, though – its showing in PCMark 10 is better. This is again a scenario where the drives with TLC flash, including the TN470 with Phison’s controller, are underwhelming. This can be confusing to buyers who have relied on the mantra that TLC is better than QLC. There are reasons for the surprise here, although the general idea that benchmarking is often looking at ideal scenarios is perhaps the easiest answer.

These drives, whether TLC or QLC, rely on pSLC cache as much as possible to give you the best performance. This pSLC mode is not equivalent to native pSLC and is generally the same speed regardless of the flash type. QLC, however, tends to lead TLC in some ways and follow it in others. For example, QLC gets larger benefits from optimizations, so it may see advanced techniques first. This includes improvements to 4K latency. On the other hand, QLC has four planes when TLC has advanced to six. As we’ve seen with BiCS flash, which is four-plane against six-plane TLC from Micron and YMTC, fewer planes can lead to lower effective latency. The advantage of a higher plane count is in bandwidth but does not come without costs and drawbacks.

The PX700 is also faster than a QLC-based drive with the same controller, like the FA200. In that case, the FA200 uses twice as many dies – thirty-two – which puts more load on the controller. This can increase latency. In general, the idea has been that bigger drives are faster, which is certainly true in many cases. Larger drives will have more bandwidth and can reach higher IOPS due to improved parallelization. However, past four dies for each channel – this is where the PX700 falls, and the FA200 exceeds – you are increasing power consumption and overhead. So, the PX700 is in a sweet spot for how this benchmark tests.

We would go on to say that the P310, WD Blue SN5100, and 990 all beat the PX700. These are all QLC-based drives with a range of controllers. We’ve already explained the BiCS factor. Samsung’s newer QLC is also very good. The P310 has always been a bit of an outlier, as on paper its hardware shouldn’t perform as well as it does. Considering Crucial used to rely at least partially on proprietary controllers, we think this is a situation where they did a lot of optimization. WD and Sandisk also did this with the Black SN8100/Optimus Pro GX 8100 so there’s some “special sauce” at play. The PX700 being the best of the rest is a point in its favor, as those are the drives it’s competing with in the real market.

Console Testing — PlayStation 5 Transfers

The PlayStation 5 is capable of taking one additional PCIe 4.0 or faster SSD for extra game storage. While any 4.0 drive will technically work, Sony recommends drives that can deliver at least 5,500 MB/s of sequential read bandwidth for optimal performance. Based on our extensive testing, PCIe 5.0 SSDs don’t bring much to the table and generally shouldn’t be used in the PS5, especially as they may require additional cooling. Check our Best PS5 SSDs article for more information.

Our testing utilizes the PS5’s internal storage test and manual read/write tests with over 192GB of data both from and to the internal storage. Throttling is prevented where possible to see how each drive operates under ideal conditions. While game load times should not deviate much from drive to drive, our results can indicate which drives may be more responsive in long-term use.

For the PS5, we can recommend almost any drive if it meets the PS5’s minimum requirements in any real way. The PX700 significantly exceeds that, so the question is more about value. What does this drive offer that others don’t? For this category, this often means leaning towards drives with heatsinks and/or higher reliability. Reliability is a difficult quality to measure, although a warranty gives some peace of mind. As for heatsinks, you can always add your own. So drawing lines here becomes more difficult.

We would point to our Power Consumption and Temperature section below for some additional support. The PX700, as we will see, runs coolly, which is a big positive for the PS5. Performance-wise, it’s right up there with the other drives and only really behind the Blue SN5100. You don’t have to go with a big brand to get good results here, and the PX700 will serve you well.

Transfer Rates — DiskBench

We use the DiskBench storage benchmarking tool to test file transfer performance with a custom 50GB dataset. We write 31,227 files of various types, such as pictures, PDFs, and videos to the test drive, then make a copy of that data to a new folder, and follow up with a reading test of a newly written 6.5GB zip file. This is a real-world type workload that fits into the cache of most drives.

The PX700 does very well here, and we wanted to give some background on this test and what it means to put that into perspective. Whether you’re copying between drives or copying to and from the same drive, there are some universal principles. One is that there will be a bottleneck, and usually this will be on the write side of things, as drives write slower than they read. Flash memory, in particular, has to erase cells before they can be written again, which leads to some curious behavior under certain workloads. More generally, though, a write has higher latency – with flash again, this is due to the technology and how multi-bit cells usually need multiple write passes – and writes must be acknowledged, while reads just come from usually static media.

If you have drives that are of different classes – NVMe and SATA, or PCIe 4.0 and PCIe 3.0 – then you would expect the slower class of drive to be the bottleneck even if it’s on the read side. This is also universal, going back to the days when HDDs got faster as they got bigger. SSDs also generally get faster with capacity, but flash is so fast that these rules are no longer absolute. This is complicated by other facets of the technology like pSLC caching and TLC versus QLC flash, where with sustained writes you can have dramatic changes in performance. This is a problem because many people buy drives thinking mostly about transfer performance, and when they hit a low that’s nowhere near the box-rated speed, they panic.

Our DiskBench testing takes all of this into account as it’s closer to a real-world workload, including using different file sizes. Transferring a bunch of large files is fast. Copying lots of small files – and any veteran of hard drives will know this from backing up Windows or documents manually – can be very slow, even on SSDs. So we do a mix. Moreover, we’re doing an on-drive copy, which helps rule out external factors. Much of what you do on your system can be cached in system memory, which can give misleading metrics depending on what you’re doing.

What we’re leading up to here is that the PX700 is the fastest drive on the list for reads and not far off first place for copying. Considering it’s up against some of the best budget drives out there, that’s no mean feat. This is, again, a real-world workload and probably more meaningful than something like 3DMark is for game load times.

Yes, the difference between the best and the worst drive for reads is under 10%, but nobody wants to buy a drive and feel bad about how fast it feels. The PX700 feels like a premium drive – the weaker write performance here is real, but most of what you’re doing will be read-heavy – and if you’re building a PC for someone with it over, say, the Samsung 990, they won’t know the difference. That is a common refrain regardless, but it helps underline the value of reliability. People buy Samsung and WD/Sandisk for a reason. Given Goodram’s European basis, there is some reason to celebrate the performance here while also acknowledging it’s not a no-name brand from AliExpress.

Synthetic Testing — ATTO / CrystalDiskMark

ATTO and CrystalDiskMark (CDM) are free and easy-to-use storage benchmarking tools that SSD vendors commonly use to assign performance specifications to their products. Both of these tools give us insight into how each device handles different file sizes and at different queue depths for both sequential and random workloads.

The PX700 has very steady performance in ATTO. We have no real complaints there. If we turn to sequential performance in CDM, we see more of the same. We would mostly look at QD1 reads for that, being a real-world metric, and it’s roughly on par with the NV7400 there. If we turn to random 4KB read performance at QD1, it’s a little bit further down the list but still hangs with excellent drives like the P310. Anything below about 45µs here is solid in our book. This drive should be quite responsive. If we were forced to be critical, we would point out that high QD 4KB write performance is low. Luckily, this is not a real-world workload for a drive of this type.

Sustained Write Performance and Cache Recovery

Official write specifications are only part of the performance picture. Most SSDs implement a write cache, which is a fast area of pseudo-SLC (single-bit) programmed flash that absorbs incoming data. Sustained write speeds can suffer tremendously once the workload spills outside of the cache and into the "native" TLC (three-bit) or QLC (four-bit) flash. Performance can suffer even more if the drive is forced to fold, the process of migrating data out of the cache in order to free up space for further incoming data.

We use Iometer to hammer the SSD with sequential writes for 15 minutes to measure both the size of the write cache and performance after the cache is saturated. We also monitor cache recovery via multiple idle rounds. This process shows the performance of the drive in various states, including the steady-state write performance.

The PX700 starts off in the pSLC cache mode, writing at 5.8 GB/s for over 86 seconds. Speeds are slightly higher for the first two seconds, something we have seen before with this controller, but ultimately we’re looking at a 500GB cache. This is Exhibit A of why we would identify the flash as QLC. 4-bit QLC flash operating in a 1-bit pSLC mode is trading four times the capacity for performance, which means a 2TB drive will generally have a 500GB cache at most. A 3-bit TLC drive could have a larger cache, although there is nothing precluding it from having 500GB, even if this seems hard to be coincidental.

A TLC drive with a smaller-than-maximum-sized cache would probably be able to maintain some speed, though. The PX700 immediately falls into a folding mode – it’s waiting for data to be moved from pSLC to the native flash – with an average speed of 163 MB/s. TLC flash can at times be this slow, but it’s less likely, and especially less likely if it has space to spare. Even the FA200, with the same hardware, is faster. The FA200 does have twice the flash, of course, but the controller is essentially saturated. Rather, the FA200’s cache speed of 5.54 GB/s is slower than the PX700’s – and this could be from having more flash – which means the post-cache speed will be higher. This reinforces the position that the drive is using QLC. Of course, we could have thrown the 2TB HP FX700 into the mix to further prove this point, but we think comparing a 4TB drive is a more valuable approach.

It goes without saying that this is the first real failing of the PX700 in our review. However, it’s expected of a QLC SSD with a massive cache. We don’t consider it disqualifying. You are not buying a budget SSD to hammer it with writes. On the other hand, the 600TBW per TB warranty makes you assume you could do that to some extent. Also, the lower performance here could creep up in a fuller-drive experience. We also can’t exclude the fact that some PX700s come with TLC flash. Which means, taken as a whole, you should assume QLC will perform like the TLC competition 99% of the time.

Power Consumption and Temperature

We use the Quarch HD Programmable Power Module to gain a deeper understanding of power characteristics. Idle power consumption is an important aspect to consider, especially if you're looking for a laptop upgrade as even the best ultrabooks can have mediocre stock storage in terms of capacity and performance. Desktops are often more performance-oriented with less support for power-saving features so we show the worst-case for idle.

Some SSDs can consume watts of power at idle while better-suited ones sip just milliwatts. Average workload power consumption and max consumption are two other aspects of power consumption but performance-per-watt, or efficiency, is more important. A drive might consume more power during any given workload but accomplishing a task faster allows the drive to drop into an idle state more quickly, ultimately saving energy.

For temperature recording we currently poll the drive’s primary composite sensor during testing with a ~22°C ambient. Our testing is rigorous enough to heat the drive to a realistic ceiling temperature but real-world temperatures will vary due to the environment and workload factors.

The PX700 comes back into our good graces with very good results in our power testing. It’s essentially tied for second with the FA200, which is hardly surprising given the hardware similarity. Only the BiCS8-based WD Blue SN5100 pulls away from the pack. We would consider every drive on this list to be sufficiently power-efficient for laptop use, although the 990 is closer to the lower end of that range. Certainly 550 MB/s per watt or higher is an excellent result and indicates a drive that can be run without a heatsink most comfortably. As for idle pull – we test under desktop conditions, which can also match poorly-optimized power settings – the PX700 is not unusually power-hungry and, in fact, better than the WD Blue SN5100. That’s a bonus.

Temperature-wise, we have good news. Goodram touts the graphene label on this drive, which, in our experience, does actually help with cooling, especially on a drive with four flash packages. The PX700 in our testing peaked at 61°C, nearly 30°C below the initial throttling point, well beyond the 20°C of headroom we like to see. The MAP1602 does tend to be a hotspot more than alternatives like the Phison E27T on the P310 and TN470, but a heat-spreading label does help. In our estimation, this is a cool-running drive that would be great anywhere.

Test Bench and Testing Notes

We use an Alder Lake platform with most background applications such as indexing, Windows updates, and antivirus disabled in the OS to reduce run-to-run variability. Each SSD is prefilled to 50% capacity and tested as a secondary device. Unless noted, we use active cooling for all SSDs.

Goodram PX700 Bottom Line

The Goodram PX700 is a model budget PCIe 4.0 SSD. It matches or exceeds all of the expected performance points; it's power-efficient, and it uses a simple single-sided design without a heatsink. The only problem is that a “budget” drive has to be affordable. Current prices in the U.S. for this drive leave something to be desired. However, if it can match or beat the prices of other drives in this class, it’s probably one of the better choices available. In part, this is because we’d be liable to trust Goodram over non-names – the TBW alone shows it means business – and, on the other hand, the drive actually outperformed our expectations. Aside from the sustained write performance, this drive really feels premium. You don’t need a Samsung, WD, Sandisk, or even Crucial drive to feel like you have next-gen storage.

Let’s look at what we mean by that for your use. Game and app loading times are heavily reliant on random and sequential reads at low QD. The PX700 does well there. You also may be transferring files a lot, and the DiskBench results are mighty. For your laptop or HTPC, you might want something that’s power-efficient and, if space is a concern, something that stays cool without a heatsink, and this applies to PS5 use as well. The PX700 ran cool in our test with just the graphene label and was very efficient. You’re not getting a shorter warranty with lower TBW, as with Samsung’s 990 or some QLC-based drives, and we know where this drive is assembled. It’s hard to look at this combination and not feel like it’s a stellar drive if you can find it at a normal price.

Aside from price, our only complaint would be sustained write performance. It’s pretty dissapointing, although we should point out that it’s also expected. The drive also has trade-offs here. Namely, its standard pSLC write performance is better than the 4TB FA200, and in the 2TB HP FX700’s ballpark, so you’re not getting nothing for that later drop. The PX700, in fact, is faster folding than the FX700, too. In the grand scheme of things, this isn’t a big deal, as you should never hit that state – this drive should effectively be fast enough for a 1GbE network, if that’s a bottleneck – and having a bit faster peak performance does translate to better marks on some of our benchmarks. The drive could take a hit in some cases, such as when it's very full, in which case getting a drive with DRAM and guaranteed TLC flash could assuage your fears.

For most use cases, though, the PX700 is more than good enough and, in fact, punches above its weight in our opinion. It would be a good option for just about any type of machine. PS5, laptop, HTPC, desktop, you name it. Primary or secondary drive, just fine. You don’t even need a heatsink. The capacity range is solid – you’re not going to find 8TB on a drive like this – and you can bring your own software. Performance is good enough to overlook any QLC flash use, so our main problem remains the price. Get it down to the same ballpark as the other drives in our list, and you have a contender. We hesitate to put an exact dollar amount for that because SSD prices are volatile, to say the least, so compare it to comparable drives such as the ones we matched it against today.

MORE: Best SSDs

MORE: Best External SSDs

MORE: Best SSD for the Steam Deck

We've seen huge price rises this year for PC hardware, but RAM and SSDs have been especially affected. The global DRAM shortage, mostly caused by AI data center demands hoovering up all of the available stock, has caused prices to skyrocket. That's why this 4TB Crucial T705 SSD, down to $502.51, is a good deal in the current market, especially given its high capacity.

● Check out this deal at Amazon

Looking at Camelcamelcamel's price data, we can see that this drive was hitting almost $700 just a few weeks ago. Several price drops since have meant that the 4TB Crucial T705 is now almost below $500 for the first time in February. Along with a decent price drop, this Crucial drive is now the cheapest Gen 5 SSD you can pick up, with the next-cheapest model, the Samsung 990 Evo Plus, $60 more expensive at the moment.

It's not even a fair comparison, too, as the entry-level 990 Evo Plus only supports PCIe 5.0 over two lanes, not four, meaning you're only getting Gen 4-equivalent speeds. The Crucial T705 is a high-performance drive that's much faster, and right now, much cheaper.

SSDs that offer Gen 5 speeds are a real step up over their slower Gen 4 counterparts. The T705 will offer you sequential read and write speeds of 14,500 MB/s and 12,700 MB/s, which is significantly faster than the fastest Gen 4 SSD on the market, the Samsung 990 Pro, which taps out at 7,450 MB/s. The T705 ships with 232-Layer Micro TLC memory modules and uses the Phison E26 controller.

It's also one of the fastest you can buy, period, rivalling the WD_Black SN8100, which hits speeds of 15,000 MB/s. That drive will set you back $659.99 right now, too, a significant increase compared to the deal on offer here. The Crucial T705 drive scored an Editor's Choice award for its sustained read/write performance at high speed, along with 4.5 stars in our review.

While we wished that SSD prices were back down to what we saw 18 months ago, it's good to see that high-performance drives like this one can still drop in price. The $502.51 sale price for this Crucial T705 4TB SSD is a seriously good one in the current market, and you won't be able to beat it for speed or price. Grab it at this price while you can.

Storage has gotten exponentially more expensive in the past year thanks to the ongoing component crisis. During times like these, scoring a deal feels extra special, especially when it's as bountiful as what @whateversunnyfinds (Sunny) stumbled upon in a local flea market. He hunted down a seemingly menial PCIe expansion card from Asus for $30, only to open it and find three Samsung 980 Pro 2TB SSDs already slotted inside.

Each of those drives is worth at least $400 today, if not more. We found the 980 Pro 2TB listed for $444 on Amazon and $499 on Newegg, which makes three of them worth between $1,300 and $1,500 together. The expansion card holding them is an Asus Hyper M.2 x16 Gen 4 that retails for $79, so even if there were no SSDs inside, this would be a solid find. The card looks worn down but not quite beat up, while the drives honestly appear mint.

An expansion card like this allows you to install extra M.2 drives in your system by using an x16 slot usually meant for GPUs. Just three of the four slots on the card were populated, so there's a chance someone took out one SSD and threw this thing in the trash. If the original owner only ever installed three, they could've forgotten to check since the heatsink covers the drives underneath.

As for the thrifter, Sunny is from Kuwait City, and he frequents the largest flea market in the region called "Souq-al-Juma" — Arabic for "Friday Market." These open-air buildouts are common in Asian and Middle Eastern countries, but not all of them carry electronics. You usually have to visit the biggest venue on a designated day, since multiple flea markets are often propped up on the same day, to get the best, most relevant deals possible.

If you're lucky enough to score something similar, the NANDpocalypse might just feel a little less crushing. We don't know the exact internal condition or health of these 980 Pros, but 6TB for $30 is such an incredible find that you wouldn't even mind if they were roughed up. It's also the exact same capacity as another person found last year while dumpster diving, so technically they got a better deal, but those were 850 Pro SATA SSDs.

If you need to buy new storage for your PC, you're going to pay extra. There's no way around that fact. The AI boom has forced prices up across the board. Without a time machine, the only way to score a good deal on a new SSD is to find a bargain that is hundreds of dollars cheaper than its current list price. Luckily, this 4TB Samsung 9910 Pro deal at Woot qualifies, knocking a huge $348 off compared to sister brand Amazon's rival discount price, making it $619.99 for a limited time only.

● Check out this deal at Woot

Before you grab your pitchforks, this is a good deal in context. Amazon owns Woot, so it's fair to use Amazon's own historic pricing as a benchmark here. That data shows this SSD, like the entire market, has seen a huge set of price increases since December. We've not seen this particular model close to this price since February. Prices have been unstoppable since then, too.

For your money, you're getting 4TB of fast storage from a known, trusted brand. Our Samsung 9910 Pro review, made before the market turmoil, shows this is a good all-rounder drive, with good power efficiency compared to its rivals. This is a PCIe 5.0 SSD, with speeds that vastly improve upon rival Gen 4 and 3 drives, and will be a huge step up over an older SATA SSD or traditional hard drive.

Two things are important to point out on this SSD: speed and capacity. 4TB of storage is a sizable amount for a gaming or productivity rig. Once you've installed your operating system, you'll be left with terabytes of space for your files. If you're a gamer, that'll mean enough for several of the biggest AAA game installations, alongside plenty of indies, with enough room left spare.

Speed is arguably the bigger draw, though. The Samsung 9910 Pro is an NVMe M.2 SSD, running on PCIe 5.0 over four lanes, delivering sequential read and write speeds of 14,800 MB/s and 13,400 MB/s apiece. This isn't the fastest, but it's not a million miles away from faster rivals like the Corsair MP700 Pro XT, which leads our best SSD list for speed with speeds of 14, 900 MB/s and 14,700 MB/s for read and write.

Specs-wise, the 9100 Pro is built with a single-sided design that includes an SSD controller, a DRAM package, and two NAND flash packages. It's made with Samsung's 5nm Presto controller and is able to max out PCIe 5.0 over four lanes for best throughput. It's a TLC drive using Samsung's 236-layer V8 flash memory modules. This particular 4TB model comes with a heatsink, too, to help keep the drive cool during use.

The $619.99 sale price for this 4TB Samsung 9910 Pro is not ground-breaking or an all-time low. In the context of the current PC hardware market, however, it's a good price that knocks nearly $350 off compared to the same model on sale at Amazon. It's a Prime exclusive (Woot is owned by Amazon), so if you want it, you'll need to make sure you use a Woot account that's linked to your existing Amazon Prime account.

If you're looking for more savings, check out our Best PC Hardware deals for a range of products, or dive deeper into our specialized SSD and Storage Deals, Hard Drive Deals, Gaming Monitor Deals, Graphics Card Deals, Gaming Chair, Best Wi-Fi Routers, Best Motherboard, or CPU Deals pages.

You can also join the Tom's Hardware deals Discord for up-to-the-minute hardware deals.

Sandisk arrives running hot to the M.2 2230 SSD segment. A spiritual successor to the popular WD Black SN770M, the Optimus GX 7100M invokes memories of the laptop champion WD Black SN7100 with tested and true hardware. Does the class-leading responsiveness and power efficiency carry over to the smaller factor? Portable gaming system owners can rest easy knowing that it does.

We don’t want to confuse WD and Sandisk here, even if the hardware – and software, for that matter – is similar and often shared. Sandisk is making its own mark, and the Optimus GX 7100M, or 7100M for short, is proof of that. While there were few options available in the M.2 2230 form factor when the Steam Deck launched, there would soon be almost too many. Sandisk didn’t have to release this drive, but we’re glad it did, because it does fill an important hole in the lineup where alternatives have become harder to find.

This is a high-end Gen 4 drive, or as high-end as this segment gets. It’s still DRAM-less but can push the full bandwidth of the interface at both capacities. Where it shines is in its random read performance. That’s the key metric for responsiveness or real-world feel, and especially for game-focused hardware, it means the fastest loading times possible. Portable systems also need to use as little power as possible to reduce heat generation and prolong battery life. The 7100M’s pedigree is great there, too. And while 2TB was once hard to find in this form factor, because drives need to be single-sided with just one NAND flash package, the 7100M handles that and does it with faster TLC rather than lower-endurance QLC flash.

It’s a powerhouse of a product. The reason we say it fills a hole is that the alternatives are hard to find. The Crucial P310 still tends to be a great choice, but the parent company is moving away from the retail space due to AI and enterprise demand. The P310 is also QLC-based, which, while not a big deal anymore, does limit its performance in some cases and means reduced endurance. TLC-based alternatives with Phison’s E27T controller, like the Corsair MP600 Mini, are harder to find and don’t quite match that random read performance. SMI’s competing controller is more often used in budget products, where you can find it, like the Kingston NV3. The 7100M is left as the clear winner if you want the very best – especially if you like its strong software package – with no real drawbacks.

Sandisk Optimus GX 7100M Specifications

M.2 2230 SSDs are generally limited to a small range of capacities, and the Sandisk Optimus GX 7100M is no different. Lower capacities don’t make sense for an upgrade when base models typically come with at least 512GB of storage. Larger capacities, 4TB or more, are difficult to achieve in such a small form factor. The 7100M only being available at 1TB and 2TB, therefore, makes sense. We will add that 4TB is possible with slightly longer M.2 2242 SSDs like the Corsair MP700 Micro and, also, 4TB for 2230 will be possible in the future. Furthermore, if devices were designed for double-sided drives, then all these limits would be effectively doubled. From the other side of things, rising memory and storage costs mean that base units might arrive with less storage, making smaller drives relevant again. It’s a push-pull situation.

At the time of review, the 1TB was going for $229.99 and the 2TB for $449.99. At 1TB, you could get the P310 for a little bit less, but otherwise, you will be giving up performance to save money. Considering the P310 is QLC-based, the 7100M isn’t too badly priced there. At 2TB, the price gap is more significant, as you can get slower alternatives for $50 to $150 less. Unfortunately, maximum performance at 2TB is the holy grail, so paying the premium could be worth it. Right now, it’s $50 or 12.5% over the last-generation WD Black SN770M, for instance, and on paper, that sounds reasonable for a drive that’s faster and more efficient.

Both capacities of the 7100M have the same peak performance level: up to 7,250 / 6,900 MB/s for sequential reads and writes and up to 1,000K / 1,300K random read and write IOPS. Both sets of numbers are excellent for a drive in this form factor, and the drive even exceeds what the Phison E27T-based Corsair MP600 Mini can achieve. This is top-tier performance for this segment and a full notch above the WD Black SN770M and effectively matches the 7100M’s forebear, the WD Black SN7100. While the Black SN7100 did not particularly stand out for us with its performance, its power efficiency is fantastic. That bodes well for the 7100M.

SanDisk has the drive pulling 4W or less under typical workloads, which puts the drive into a good spot for mobile devices. We test with a mixed workload, which can push a drive a little bit harder than this. Either way, this isn’t a lot of power for a full-fledged Gen 4 device – the drive’s 7,250 MB/s is near the limits of the interface – so we can expect good power efficiency.

Sandisk backs the drive with the standard 5-year, 600TB of writes per TB warranty. The drive supports the TCG Pyrite 2.01 specification and only has software encryption. This is perfectly normal for a drive of this type. The TBW is, however, higher with TLC versus QLC flash.

Sandisk Optimus GX 7100M Software and Accessories

Sandisk has you covered with its software. The Sandisk Desktop App, which works on Windows and macOS, is useful for general file transfer and password protection – software encryption, as well. The Sandisk Dashboard is Sandisk’s take on WD’s Dashboard, an SSD toolbox application with a wide range of features. An SSD toolbox like this gives you information on your system and drives, including SMART and health information. It lets you test and benchmark the drive. Importantly, this software also helps you update the firmware, if necessary, and use other features such as Game Mode. Sandisk also offers an Acronis True Image download, which is great for backing up files and your OS or for cloning drives.

Sandisk Optimus GX 7100M: A Closer Look

The 2TB Optimus GX 7100M is a single-sided drive, optimized for device compatibility. This does limit it to a single NAND flash package, which puts a cap at 2TB. This is because the most common dies widely available are 1Tb, or 128GB, apiece, and typically a single package – which has to stack the dies on top of each other, might have dummy dies for stability, and has to carefully maintain signal quality without exceeding height limitations – can only hit sixteen dies.

According to the specification sheet, this drive uses the M.2 2230-S3-M form factor. The M.2 format is easily recognizable as the way consumer SSDs are made these days, in contrast to the old 2.5” SATA drives. Other form factors meet the needs of the enterprise. 2230 tells us the length and width in millimeters. This is a common size for portable devices like the Steam Deck, the Asus ROG Ally, and the Lenovo Legion Go. The “M” part means it’s M-key, which we expect these days as NVMe drives using a full four lanes are common. Some drives can drop back to two lanes, like the Samsung 990 EVO and Samsung 990 EVO Plus, but are still capable of using four.

The “S3” is the part we’re looking for here, which tells us it’s single-sided rather than double-sided with a “D.” The number tells us the permitted height of the components. S1 allows for 1.2mm, S2 1.35mm, and S3 1.5mm. We would expect this drive to be S3 since it needs to pack in sixteen dies. The nominal PCB thickness for M.2 is 0.8mm, so this puts the drive at ~2.3mm, and the datasheet lists 2.38mm. This isn’t too interesting on its own, but it could be useful if you know the exact limitations of your device or need to make other measurements, such as for custom cooling. Some devices can take double-sided devices, which, as you can imagine, have similar height thresholds but with components on both sides.

One other interesting thing is the rated power: 3.3V at 1.8A puts the peak power around 6W. This is well higher than the specification sheet, which, again, is for average and also with read and write separately rather than mixed, as well as what’s listed by SMART and in our testing. We reckon this drive will always be below 5W, which normally would ensure there won’t be any heat issues. For M.2 2280, that’s broadly true, but heat is always an issue for 2230.

In addition to the sole NAND flash package, the drive also has a DRAM-less SSD controller and power management circuitry. The controller is proprietary Sandisk technology, listed as the A101-000171-A1. Similar to the WD Black SN7100's A101-000172-A1, which is a four-channel controller that can take fast enough flash to saturate PCIe 4.0. We would expect the drives to share the same flash, too, which would be Sandisk’s 218-Layer TLC. BiCS8 flash, whether TLC or QLC, has proven to have fantastic random read latency and also excellent power efficiency. This makes it great for the M.2 2230 segment.

The 7100M is still DRAM-less, as it can be difficult to make a DRAM package work in this form factor. In the past, it was not uncommon to see DRAM at least in M.2 2242, but modern host memory buffer (HMB) solutions are quite good. A quick look at the random 4KB results for this drive will dispel any illusions that you need DRAM to make a drive feel fast. In fact, it’s very unlikely DRAM would ever make a difference in the type of device this drive is made for, although there are always exceptions. Yes, there are some odd drives that have DRAM as part of the controller package – SK hynix’s BC711 comes to mind –, but these are rare and relegated to the Gen 3 era. An OEM Gen 3 drive is perfectly enough for a Steam Deck, but we’re in the business of gauging modern retail options.

The older Black SN770M, which is a retail version of the OEM SN740 – an extremely popular drive when the Steam Deck was still young – and a shortened version of the Black SN770, struggled with power efficiency. At least, in comparison to some of the newer 2230 drives on the block. With that problem out of the way, thanks to more efficient flash, the 7100M might very well be the best drive of its type available. We certainly think so, but knowing the pedigree of the hardware can help explain why this is.

MORE: Best SSDs

MORE: Best External SSDs

MORE: Best SSD for the Steam Deck

Comparison Products

The Sandisk Optimus GX 7100M is slated to be the top for M.2 2230 SSDs, so we are putting it up against our best drives. These include the Crucial P310, which, despite being QLC-based, is the fastest all-around 2230 drive up to this point, and the Corsair MP600 Mini with the Phison E27T. The Phison E27T controller, when paired with TLC flash, as is the case with the Corsair drive, is about as fast as you can get, but more importantly, it has the advantages of TLC. This means more consistent performance and better endurance. The Optimus GX 7100M, also with TLC flash, is therefore the ultimate challenger.

For other hardware, we have the Kingston NV3 that uses a comparable SMI controller. We have an SMI controller in the Lexar Play, too, although at a lower speed. The 7100M’s predecessor, the WD Black SN770M, is also in play. This drive and its OEM counterpart became popular picks after the Steam Deck came out, offering, at the time, the best performance possible at the cost of higher power consumption. Alternatives here generally use the Phison E21T controller with various TLC and QLC flash choices. These include the Silicon Power UD90, the Sabrent Rocket Q4, and the Teamgroup MP44S.

Trace Testing — 3DMark Storage Benchmark

Built for gamers, 3DMark’s Storage Benchmark focuses on real-world gaming performance. Each round in this benchmark stresses storage based on gaming activities, including loading games, saving progress, installing game files, and recording gameplay video streams. Future gaming benchmarks will be DirectStorage-inclusive, and an evaluation for future-proofing is included where applicable.

If you’re buying an M.2 2230 SSD, you’re probably buying it for gaming. Yes, there are productivity machines with small form factor SSDs, and you could buy this drive and use it with an extender for a random system, but gaming is the one place it has to do well. Frankly, we’re impressed with how well the 7100M does here. It’s second only to the P310 and is first among TLC-based drives. Beating the TLC-equipped, E27T-based MP600 Mini is an accomplishment. This drive will be very responsive for gaming, and we’d even put it above the P310 for that, in fact. This is because the P310 is using QLC flash – with a fuller drive, with a lifetime of transfers and wear, it should suffer more, meaning you’d pick the 7100M for peace of mind. At the very least, it’s a deciding point if the prices are close.

As a side note, this drive is supported by the Sandisk Dashboard and, as such, has the Game Mode feature. This mode works by disabling the drive’s idle power states, improving responsiveness. This can slightly improve game loading times. The Dashboard is designed for Windows.

Trace Testing — PCMark 10 Storage Benchmark

PCMark 10 is an industry standard trace-based benchmark that uses a wide-ranging set of real-world traces from popular applications and everyday tasks to measure the performance of storage devices. The results are particularly useful when analyzing drives for their use as primary/boot storage devices and in work environments.

The 7100M proves to be great at productivity, too, more or less tied for first in PCMark 10 with the P310. Our QLC caveat applies again: all else being equal, you’d probably pick the TLC 7100M over the P310. We want to emphasize that there are many good DRAM-less drives that can get near this performance level, but you don’t see that hardware in this form factor. For example, we don’t see the Maxio MAP1602 controller here, for a variety of reasons. That controller does tend to run hot, for one thing, and that’s always a looming concern for this form factor. We also don’t see much from SMI, and when we do, it’s usually for budget drives. This reduces the amount of direct resistance to the 7100M.

Phison exists, but the E21T and controllers of that class were and remain much more present in this form factor. That’s partly because the M.2 2230 form factor took off around the same time that such drive technology came out, and now we have a very uncomfortable memory market. Also, the Steam Deck is PCIe 3.0, so you only need so much performance for the most popular destination device. Even with 4.0 devices, a 5 GB/s drive is plenty of performance for a portable system. That means that a drive like the 7100M has less direct competition than you might expect if we’re talking about performance. It’s nearly peerless, in fact. If that’s what you want, then this drive should be at the very top of your list.

Steam Deck Testing — Gaming, KDiskMark, and Temperature

The Steam Deck is not the only portable gaming system in town, but it was the first and most popular to take M.2 2230 SSDs. While some systems have moved on to fit 2280-length drives, 2230 remains popular for many systems, and such drives will work fine in longer slots with the proper standoff or extender. The Deck operates in PCIe 3.0 mode for its SSD, limiting maximum bandwidth, but that has less of an impact on responsiveness/latency, and the Deck is still useful for gauging drive temperature and power efficiency.

Our current testing for the Deck involves analyzing game load times for some popular games. This is probably the most important metric for gamers, but the difference between one SSD and another can be small. We also use KDiskMark, a CrystalDiskMark-like substitute that uses the flexible I/O (FIO) tester instead of diskspd for its underlying benchmarks. We also check the drive’s maximum temperature during this test.

The tests in this section are run under the stock Arch-based SteamOS Linux platform, but our other tests are conducted as per our normal reviews, using Windows. Many portable gaming systems today use or can use Windows with multi-boot as an option. This testing section is instead designed to give an idea of Linux performance, which does involve the use of Proton.

The 7100M does well in all of this testing and runs relatively cool, too. We specifically want to point out its excellent random read performance at QD1, a metric that most readily correlates with responsiveness or “feel.” The P310 pulls away at a higher queue depth, but this is mostly not relevant to what this drive needs to do. We’d say the 7100M’s biggest weak point is the QD1 sequential read speed, merely good but significantly below the P310’s. Many apps and games have low QD sequential reads for loading, and it’s possible the P310 will be slightly quicker for some titles. The magnitude of this, on average, across apps and games will likely be tiny, to say the least, and further, we think that a fuller and realistically worn drive might favor the TLC-based 7100M in the long term. Then again, you probably won’t be fully wearing out any drive in a portable gaming system. We’d probably focus more on heat and power draw, which we address further below.

We do want to point out that QD1 sequential read performance is excellent in our CrystalDiskMark test below. KDiskMark is running on Linux and is built on FIO, which is a different I/O stack. Additionally, on the Deck, we’re testing drives only at PCIe 3.0 speeds. Furthermore, in some cases, weak CPUs – and this applies to many APUs – as well as different platforms, can impact storage performance results. If your portable device is running on something more modern with Windows and PCIe 4.0, it’s quite possible your results will align more with CDM.

Transfer Rates — DiskBench

We use the DiskBench storage benchmarking tool to test file transfer performance with a custom 50GB dataset. We write 31,227 files of various types, such as pictures, PDFs, and videos to the test drive, then make a copy of that data to a new folder, and follow up with a reading test of a newly-written 6.5GB zip file. This is a real-world type workload that fits into the cache of most drives.

The 7100M delivers the highest copy rate in DiskBench, along with the highest read transfer rate. In a portable device, such as one that would take a primary M.2 2230 drive, you often don’t have a lot of fast transfer sources. You might have only a 10Gbps external drive, a relatively slow microSD card, and so forth. Copying on the same drive still occurs with updates and other procedures, and you are essentially relying on a single drive to manage most things on the system. For this reason, the DiskBench results are still useful for gauging how well a drive can manage mixed workloads. The 7100M handles that like a champ, and the high read performance – considering you do a lot of reads – is also a bonus.

The only anomaly here is the write speed, which was also a bit low in our previous Steam Deck test section. Write performance can be misleading for many reasons. Most pertinently, modern drives use pSLC caching, which can “hide” the true performance of the native flash. This can mean performance is not always consistent. Manufacturers can optimize the drive firmware with this in mind, making trade-offs such as varying the cache size to improve sustained performance. Drives ultimately have to move data over from the cache to the native flash, so test results don’t always align with expectations. To get a fuller idea of write performance, you should check our Write Saturation section.

Synthetic Testing — ATTO / CrystalDiskMark

ATTO and CrystalDiskMark (CDM) are free and easy-to-use storage benchmarking tools that SSD vendors commonly use to assign performance specifications to their products. Both of these tools give us insight into how each device handles different file sizes and at different queue depths for both sequential and random workloads.

The first signs of weakness on this drive appear in ATTO, but things are not as bad as they first appear. We’re talking about read performance, and when looking at our logarithmic chart, the jumps up and down don’t seem as bad. While throttling could affect this test, generally, that’s not the case. It helps that we see the same pattern with the WD Black SN7100, as we can rule out any randomness.

However, we don’t see it with the WD Blue SN5100, which uses BiCS8 QLC and a comparable controller, so this is probably a feature of BiCS8 TLC. We also don’t see it on the WD Black SN8100 or Corsair MP700 Pro XT, drives with that flash but controllers from SMI and Phison, respectively, so it’s not the flash on its own, either. Given the drops are at 64KiB and 256KiB – with 16KiB pages, this is with 4-way and 16-way interleaving, which aligns both with the flash channel count and the four-plane count dies – it’s likely an artifact of how the proprietary controller manages the reads. Sandisk has some interesting optimization going on, which you can see most clearly with random reads and power efficiency, so we don’t want to jump to conclusions, especially as long as real-world performance remains strong.

Thankfully, it does. The 7100M has incredibly low 4KB random read latency at QD1 in CDM, blowing away the rest of the 2230 drives. As we pointed out above, the competition here is more limited in comparison to full-length drives, which helps the 7100M stand out even more. In many cases, you could look only at this result and be convinced that this is the drive to get. However, as we’ve stated in the past, a good rule of thumb is ~45µs if you want a top-notch experience, and other drives hit that. The 7100M just takes it to a new level.

Sequential read performance at QD1 is also very important; in fact, it is sometimes overlooked with regard to game and app load times. It often deserves to be weighted alongside random 4KB. Luckily, the 7100M is tops here, too. WD and Sandisk have this mastered, as the SN770M is a monster as well. Given that the 7100M can push even more bandwidth with efficient flash, just chef’s kiss.

Sustained Write Performance and Cache Recovery

Official write specifications are only part of the performance picture. Most SSDs implement a write cache, which is a fast area of pseudo-SLC (single-bit) programmed flash that absorbs incoming data. Sustained write speeds can suffer tremendously once the workload spills outside of the cache and into the "native" TLC (three-bit) or QLC (four-bit) flash. Performance can suffer even more if the drive is forced to fold, the process of migrating data out of the cache in order to free up space for further incoming data.

We use Iometer to hammer the SSD with sequential writes for 15 minutes to measure both the size of the write cache and performance after the cache is saturated. We also monitor cache recovery via multiple idle rounds. This process shows the performance of the drive in various states including the steady state write performance.

Modern drives tend to write in three states: the pSLC cache, direct to the native flash, and in a folding mode. The first mode is temporary and fast, converting native flash into single-bit mode to trade capacity for speed. When space gets tight, the drive can choose to write straight to the flash. This is slower and can be worse for endurance in some cases. When space is completely exhausted, the drive is forced to wait for data to go through the pSLC cache and be “folded” over to the native flash, is far slower and decreases drive consistency and responsiveness. Most of the time, you want to be in the cache, especially with an M.2 2230 drive, but it’s worth seeing how the drive might behave if it’s left in a fuller state after sustaining writes.

How the pSLC cache is handled varies from drive to drive. A larger cache can handle larger bursts of traffic, but this can leave the drive more vulnerable in some cases. A smaller cache can result in more consistent drive performance. There are also two types of pSLC cache, static and dynamic, with different characteristics. Generally speaking, the static portion is always available, while the dynamic portion is altered with the amount of free space. Proprietary solutions such as Samsung’s TurboWrite and WD’s or Sandisk’s nCache – with nCache 4.0 on this drive – use both types in tandem.

WD’s and Sandisk’s most recent drives have opted for larger caches. This is also true for Samsung, which, with the Samsung 990, has significantly increased the size of the cache. In the 7100M’s case, the cache takes up almost the entire drive. The drive wrote at over 6.4 GB/s for 110 seconds, implying a ~708GB cache. With three bits in TLC needed per pSLC bit, this is quite large for a 2TB drive, although there is a little free space, which helps keep the drive from flatlining completely. Instead, the drive is able to maintain a middle mode around 2.9 GB/s for a small amount of time, which is, honestly, quite fast for such a mode. In most cases, this would be an adequate cushion.

After that, the drive oscillates when hitting the folding mode. Performance is much less consistent as space is periodically freed. We see an actual peak of around 1,450 MB/s here, which is about half of that 2.9 GB/s. This is a common ratio because when you’re folding, you’re essentially writing twice. However, the controller is juggling many things as it is attempting to remain responsive to incoming I/O while moving data in the background. Therefore, performance dips further with a bottom closer to 500 MB/s or so. Over time, this gives us an average of 894 MB/s, which isn’t too bad. By all standards, it’s better than any QLC-based drive and is respectable for a TLC drive with such a large cache.

Power Consumption and Temperature

We use the Quarch HD Programmable Power Module to gain a deeper understanding of power characteristics. Idle power consumption is an important aspect to consider, especially if you're looking for a laptop upgrade, as even the best ultrabooks can have mediocre stock storage in terms of capacity and performance. Desktops are often more performance-oriented with less support for power-saving features, so we show the worst-case scenario for idle.

Some SSDs can consume watts of power at idle while better-suited ones sip just milliwatts. Average workload power consumption and max consumption are two other aspects of power consumption, but performance-per-watt, or efficiency, is more important. A drive might consume more power during any given workload, but accomplishing a task faster allows the drive to drop into an idle state more quickly, ultimately saving energy.

For temperature recording, we currently poll the drive’s primary composite sensor during testing with a ~22°C ambient. Our testing is rigorous enough to heat the drive to a realistic ceiling temperature, but real-world temperatures will vary due to the environment and workload factors.

The 7100M does not disappoint in power efficiency. It’s the most power-efficient drive on this list and the most power-efficient M.2 2230 SSD that we’ve tested. We feel like anything over about 500 MB/s per watt is good enough for this segment, but getting above that into the P310 or NV3 range is better. It’s hard to argue with this result.

Drives can have multiple sensors for different things. Temperatures can be reported for the flash memory, the DRAM if present, the PMIC, and the controller. Typically, these values are not super accurate and certainly will be different from directly measured temperatures, as often they are a composite. This essentially means the drive reports a general temperature measured against a range for throttling.

Measured temperatures from the 7100M’s sensors came in at 73°C, 76°C, and 85°C for peak readings. The drive is rated to throttle at 90°C with a critical temperature of 94°C. Generally, we like to have at least 10°C of headroom and preferably twice that. So, the numbers here do give us pause, but they can be explained. If we compare the P310, for example, we have another very efficient drive that, in our testing, got within 5 degrees of throttling. The reason is simple: this short form factor has all the hardware pressed together. It’s hard to get around that fact, and it’s very common for 2230 drives to throttle or overheat in portable devices, especially when traveling in warmer climates. You usually have little to no cooling right next to a maxed-out APU, after all.

Another consideration is the workload. You’re unlikely to have sustained writes of the type we’re doing. If you’re on a Steam Deck or an older device, you’re also going to be running in PCIe 3.0 mode. Drives will run much cooler in that mode or with everyday workloads. To add to that, these temperatures don’t reflect actual internal ones or the real limits of the hardware. You should not assume that high temps like this mean the drive won’t have a long lifespan, especially since your host device will likely spend most of its time sleeping.

That said, we do recommend you treat your drive well. If it is at all possible to improve cooling – and this could be a simple matter of adding some thermal interface material or a low-profile heatsink – then you should consider it. Avoid breaking warranties, of course. A good example of what we’re talking about is the Apple MacBook Neo. The main chip on it runs notoriously hot, and DIYers have shown that even adding just some thermal padding can significantly improve performance. The chip still throttles, though. This is the reality of portable devices like this, and thankfully, your SSD won’t be running full blast like an APU any time soon. So we don’t think this is a major drawback of the 7100M – it’s just difficult to escape – but you should be aware that top-tier Gen 4 performance comes at a cost.

Test Bench and Testing Notes

We use an Alder Lake platform with most background applications, such as indexing, Windows updates, and anti-virus, disabled in the OS to reduce run-to-run variability. Each SSD is prefilled to 50% capacity and tested as a secondary device. Unless noted, we use active cooling for all SSDs.

Sandisk Optimus GX 7100M Bottom Line

The Sandisk Optimus GX 7100M is, in a word, fantastic. Anyone who loved the WD Black SN7100 as a proper successor to the WD Black SN770, especially for its class-leading random read performance and power efficiency, can now get that in M.2 2230. The Black SN7100 has been the best SSD for laptops, and now smaller portable devices can enjoy new levels of storage comfort, too.

The 7100M doesn’t disappoint with high levels of performance across-the-board and excellent power efficiency. It’s not always the fastest, but it’s very fast where it matters and doesn’t have the power consumption issue of the previous WD Black SN770M. Even though these drives usually end up on a Linux machine such as the Steam Deck with SteamOS, Sandisk’s excellent Windows software suite is a cherry on top if you’re working with that OS, are multi-booting, or need to work with the drive on your main Windows PC. The drive is also great for enclosures, particularly ones for M.2 2230 drives, and you can extend this drive with an M.2 extender accessory for other slots. It’s just a solid product, no matter what.

The drive lacks a full capacity range of SKUs, but we can’t hold that against it. Higher capacities cannot be achieved without going double-sided or up to M.2 2242. Lower capacities have generally been less desirable, and performance would be lower, too. It wouldn’t be the first time a new 2230 model was limited to 1TB, but Sandisk is going for 2TB out of the gate. Sandisk opted for the two most popular capacities, and performance is stellar for both. Power consumption is also low for both, which is useful for the battery-limited target devices for the drive. It’s really hard to find fault here.

Although it’s not easy to find downsides to this drive, we do feel there are enough drawbacks to prevent it from getting a perfect score. We feel the pricing isn’t too far out there given the current market, and that aside, we’re then looking at performance and cooling. Performance is not always consistent across our tests, and while Sandisk’s pSLC optimization makes sense within the greater product stack, they could have taken a cue from Phison and been more conservative with it. There are people who will want to use this drive in fast enclosures, and having more consistent, sustained writes could help them. But this is a nitpick.

Of more concern is the heat output of the drive, which, to be fair, is also not really Sandisk’s fault. This level of performance in a tight package is going to put out some heat. Because the drive has to fit in a range of devices, Sandisk can’t really throw on a heatsink or anything like that. The drive will be fine in any Gen 3 device and, hopefully, any properly designed Gen 4 device. Alternative drives do not necessarily offer any advantage over the 7100M here, either. Nevertheless, we’ve seen from newer controller designs like the Phison E31T that you could probably do better in this form factor. Sandisk is using existing technology from its stack, and that makes the most financial sense, but that also leaves in our mind the knowledge that a better product could exist.

We’d say that’s quite complimentary to Sandisk, considering the 7100M is the best M.2 2230 drive on the market. If you’re looking for the best 2230 drive, this is it. Your experience is going to be fantastic in every way – fast load times, good power consumption levels, and software support with True Image and a respected toolbox if you need it. You will pay a premium for it, but particularly for an enthusiast Gen 4 device, this is well worth it. On the other hand, your device might come with a fast, capacious drive, so you wouldn’t be looking at the 7100M, anyway. If you’re on the budget end of things, you can save money here, too. Any of the other 2230 drives on the list will probably be sufficient in that case. The 7100M is an investment, but a sound one, and we can highly recommend it.

MORE: Best SSDs

MORE: Best External SSDs

MORE: Best SSD for the Steam Deck

SSD prices in general remain considerably higher than a year ago. Still, this discount on Samsung's 9100 Pro 2TB SSD is a welcome sight, as Samsung's fastest PCIe Gen 5.0 drive returns to the lower pricing that we witnessed during the most recent Amazon Prime Day sales event at the end of last month. You can currently grab the 2TB Samsung 9100 Pro for $399.99 at Amazon, a discount of 41% compared to its list price. That's only $10 more than Samsung's excellent 2TB 990 Pro SSD at $389.99, and $30 more than Samsung's recently released 2TB 990 at $369.99, which are both previous-generation PCIe 4.0 SSDs with half of the available bandwidth speeds.

● Check out this Samsung 9100 Pro 2TB SSD deal at Amazon
● Check out this Samsung 990 Pro 2TB SSD deal at Amazon
● Check out this Samsung 990 2TB SSD deal at Amazon

Samsung's 9100 Pro SSD boasts sequential read speeds of up to 14,700MB/s and write speeds of 13,400MB/s thanks to the available PCIe 5.0 bandwidth, making it one of the fastest drives on the market, perfect for heavy professional application workloads, and of course top-end gaming PCs.

By contrast, the 990 Pro offers about half the read and write speeds of this drive at around 7,450/6,900MB/s, with the recently released Samsung 990 offering up to 7,250/6,450 MB/s, but switching from TLC to QLC NAND. These drives pretty much max out the PCIe Gen 4 bandwidth, with the new Samsung 990 being marketed as a budget-oriented SSD, but in reality and most importantly, in terms of pricing, the difference between the Samsung 990 and the much faster 9100 Pro is just $30.

We've reviewed Samsung's 9100 Pro and found this impressive Gen 5 drive to be one of the fastest SSDs available to buy. During benchmark testing, the Samsung drive placed near the very top of the charts. In our PCMark 10 Storage tests. the 9100 scored higher than any other drive we've tested.

However, if your motherboard doesn't support PCIe Gen 5, or you only have a single Gen 5 M.2 slot on your mobo and need to populate any other spare M.2 slots with PCIe Gen 4 SSDs, then the Samsung 990 Pro is the best shout.

Or save a further $20 and opt for Samsung's latest SSD, the 2TB 990. This PCIe Gen 4 drive opts for QLC NAND, but still has fast access speeds. The drive can reach 7,250/6,450MB/s for sequential reads and writes and up to 850K/1,200K random read and write IOPS.

RAM and SSDs are some of the toughest PC components to get your hands on at the moment at prices that won't give your bank account an aneurysm, so we take any discounts we can. Especially if it helps us build or upgrade our beloved PCs for slightly less. There's currently no end in sight for memory and NAND prices to return to more normalized values until manufacturers can ramp up production, and AI hyperscalers stop sweeping up all the demand. So definitely give these Samsung SSD deals a look if you're on the hunt for an SSD upgrade.