The 5 Largest SSDs Worth Buying in 2025
We’ve updated this feature to cover 2025 releases. While most of the picks remain the same this time, we’ve included a couple of decent alternatives for SSDs that sometimes have stock issues.
Are you looking for a solid state drive capable of running as an unparalleled storage solution?
Perhaps you want to build a server, premium HTPC, or even finally get your whole Steam library installed at once!
Whatever the goal, there are some incredible offerings available in the current market.
Today’s feature is here to guide you through the largest solid-state drives worth buying for 2.5-inch, M.2 & external needs.
In other words, we’re not here to recommend a 100TB SSD with no actual availability/realistic price tag, but the largest drives designed for mainstream consumption (with decent availability and great value).
- Largest 2.5″ SSD: SAMSUNG 870 QVO 8TB
- Largest M.2 SSD: Corsair MP400 8TB
- Largest External SSD: Glyph Atom Pro 8TB
- Largest Enterprise 2.5-inch SSD: Intel DC P4510 Series 8 TB
- Largest Cheap SSD Option: SAMSUNG 870 QVO 4TB X 2
Quick word on where to buy large SSDs
Before we start, it’s worth touching on the problem with fake SSDs.
There are a fair few inauthentic listings out there that usually use smaller drives with data rewrites disguising the product as say, 8TB (when in reality, the drive will stop writing data very early, or simply not work).
You have to be fairly vigilant because some scammers will use a well-reviewed page to deceive people into thinking they’re buying a good product (e.g. a listing for a 1TB SSD with lots of good reviews is changed to a fake 8TB SSD page).
These fake drives are often more prevalent at larger sizes (particularly for external drives) because they lure buyers in with prices around 80-90% cheaper than our top picks.
Unfortunately, we’re here to say you won’t get a massive SSD that cheap for a long time, so be vigilant, keep to our recommendations if possible, and even when buying from these pages, make sure it is Amazon themselves shipping the product (or a reseller with 98%+ feedback).
If you want to stray to other picks, then we highly suggest sticking to reputable brands (Samsung, Corsair, etc.).
Largest 2.5″ SSD: SAMSUNG 870 QVO 8TB
8 Terabytes is the largest SSD size available for mainstream solutions (outside of the overpriced low-availability products and vanity prototypes).
Leading the charge for the average user after a SATA 2.5-inch SSD for their PC is this fantastic offering from Samsung.
One of the leading manufacturers in storage, Samsung’s 870 QVO series balances its enormous storage allotment and excellent value, without compromising on decent longevity.
The 870 QVO offers speeds up to 560 MB/s read and 530 MB/s write, and we’re pleased to add that hands-on benchmarks suggest that these are realistic speeds to achieve and not simply “marketing maximums”.
Firstly, these speeds make the 870 QVO an excellent offering for gaming, media/HTPC, and other general storage requirements, with enough speed to efficiently read/write (if you’re looking for the largest SSD for a gaming console like the Xbox Series X & PS5, just remember to check your model’s maximum compatibility – if you can’t reach 8TBs, the 2-4TB models are also great alternatives).
There’s plenty of capability here for production users too (e.g. video editing and rendering). We would say if you’re serious about maximizing your OS speed and most-used programs, it would be good to have an M.2 drive alongside the 870 QVO (or even consider the 8TB M.2 NVMe option below if your budget is large).
But we love the 870 QVO for the majority of your storage needs when considering the biggest SSDs, because it’s so cost-effective for what it offers.
The drive is based on a QLC memory cell structure to achieve this excellent price-point. While some users like to steer clear of QLC, Samsung has designed the 870 QVO with Intelligent TurboWrite and a ECC algorithm focussed on longevity that has enabled it to achieve a TBW (terabytes write) rating of up to 2,800, which is twice that of the previous version which was already well-received by long-term users.
A well-created QLC structure for 8TB with high-end SATA speeds and from one of the most reputable storage brand really is a fantastic combination of specs for most users, especially considering this is the cheapest 8TB solid-state drive widely available.
Build-wise, the 870 QVO boasts a minimalist design with a sturdy, durable frame. It looks understated like most SSDs, but we appreciate the drive feels physically made to last, and also boasts great results in thermal benchmarks.
Samsung also offers a host of great software utility alongside the 870 QVO drive management, data cloning/migration & their signature Samsung Magician for speed optimization. While not hugely unheard of, these utilities are nice value-adds for those after some hands-on maintenance.
We’ve already talked a lot about the value on offer here, but it’s worth re-iterating one last time, as it’s the reason it tops the list (alongside its enormous size); there isn’t even any premium compared to the smaller models, with the 870 QVO typically costing close to double the 4TB variant (it’s very common for larger solutions to come with diminishing returns price-wise).
While there are some options emerging in the 16TB SSD market, I don’t consider these viable options as the price increase over 2 x 8TB drives is grossly inflated. Take the VectoTech 16TB solid state drive; it’s nearly the price of 3 x8TB SSDs – therefore I would recommend buying in multiples of 8TB if you are in need of even more space.
When considering the needs of the average user after the largest capacity SSD, nothing compares to the 870 QVO (especially if you can compare it with a smaller M.2 drive).
With great speeds, build quality, longevity for QLC all at an unrivaled price, it’s not just the largest solid-state drive available for SATA users, but the one we recommend with the best regard for its other merits.
Largest M.2 SSD: Corsair MP400 8TB
We’re pleased to see that the largest M.2 solid-state drive matches the capacity of the more traditional 2.5″ offering.
And as you might expect, if you have the budget for it, the speeds that are on offer are stunning.
With up to 3400 MB/s read & 3000 MB/s write, we’re pleased to say that, like the Samsung 870 QVO, various reports and testing show that the real-world performance of the MP400 gets close to these advertised speeds regularly.
This is the fastest 8TB SSD available today, and despite that, its architecture still manages to also boast 1,600 TBW being built on High-Density 3D QLC NAND, striking a good balance between the cheaper options of QLC while maintaining great longevity
As fast as it is, the MP400 is over 50% more expensive than the 870 QVC.
Would we recommend it as one of the best SSDs for operating system use and demanding read/write needs? 100%.
But with the high price in mind, it’s worth pointing out that although the Mp400 is 6x faster than nearly all of its 8TB SATA SSD counterparts, this won’t mean you’re receiving anything close to 6x operational performance
While it’s a great investment if you can afford it, running your system using the 870 QVO would still provide great speeds (you could also combine this large SATA drive with a smaller version of the MP400 M.2 drive running your main software and OS, using the 870 QVO 8TB for your general storage/media if you want to try and balance yourself between price and performance).
If you’re utilizing lots of cloud storage, or an intensive virtual machine environment, investing in MP400s will be fantastic if you have a motherboard with the appropriate M.2 support.
Unlike SATA solid-state drives, we tend to see larger NVMe 8TB SSDs cost more per byte for their larger size.
In other words, for an 8TB MP400 drive, you can expect to pay around 5-10% more than 2 x 4TB MP400s. But as M.2 slots are usually more limited than SATA outputs, we think it’s worth the extra investment if you’re a serious user looking to maximize your storage capacity.
With unparalleled speeds, size, and awesome compatibility across PCIe, the 8TB MP400 may be pricey, but when you take into account you’re getting one of the best M.2 drives in any category, we think it’s more than worth the expense.
Largest External SSD: Glyph Atom Pro 8TB
Although Glyph isn’t a powerhouse name like Samsung and Corsair, they’re a reputable brand, especially in the premium SSD market.
One of the best examples of their achievements is the Atom Pro, which isn’t just a portable, durable 8TB external SSD, but it also operates on an NVMe interface to manage speeds comparable to some of the best M.2 drives.
With speeds of up to 2800 MB/s read and 2600 MB/s write, this may be a tad less than the MP400 above, but to reach these speeds for an external device that is also balancing portability/durability? The Atom Pro’s specs are very good.
We consider it better than the competition for a few reasons, but the main one is that we think that the type of user after the largest external drive will likely be looking for high transfer speeds.
Whether it’s for 4k 60FPS video editing, production use, or someone who is looking to use this enormous capacity for a dedicated portable PC storage with OS/media/games, the NVMe specification and speed of the Atom Pro gives it a fantastic, efficient position in the large SSD market.
Its capability as a top-end portable storage solution is really solidified (no pun intended) by the quality of the build. Not only is it surprisingly small (with a nice opening around its sides to fit the connector cable through during travel), but it’s one of the most durable SSDs we’ve seen, boasting 810F military standard grading to endure intensive environments.
Now, while we do rank this as the best external 8TB solid-state drive, we acknowledge that it is a very expensive drive.
As stunning as the read/write speeds are on a portable offering, if you don’t see yourself using the speeds to a decent level, then you may be better off looking at the VectroTech Rapid 8TB which we talking more about in our 8TB SSD article.
It’s worth adding that to achieve the top speeds, you need a device that supports Thunderbolt 3/4 (the Glyph comes formatted as a Mac SSD, but can be simply changed to a Windows drive with a reformat at the point of installation). Regardless, we would have liked to have seen an in-built USB-C.
Although, with a USB-C adapter, it would undoubtedly still reach great speeds on another connection.
Overall, we’re super impressed by what Glyph has put together with the Atom Pro; with unmatched durability, portability, speed, and storage size.
If you have the budget, you’re not just getting one of the best 8TB external solid-state drives available, but also one of the best portable storage solutions in any category.
2025 update: We still rate the Glyph as a great pick, but we’ve seen it run into more and more stock issues in 2025. Another fantastic portable option is the VectoTech 8TB drive. It’s very similar in capabilities to the Glyph, with the only downside being a slightly less durable design (but still quite rugged).
Largest Enterprise 2.5-inch SSD (TLC): Intel DC P4510 Series 8 TB
If you are looking for a business-grade storage solution (or simply want the highest-end large SSD for general use with no budget limits) this Intel SSD is your best choice.
The P4510 series stands out by fitting the 2.5″ form factor while running a U.2 PCIe setup to reach 3200 MB/s read & 3000 MB/s write speeds.
Not only are the speeds almost at the level of our top M.2 pick, but the P4510 also boasts excellent secondary specs that promote it as a great stable solution for business-level storage (e.g. virtual machines and other high-demand needs), with extremely low latency and fantastic read/write IOPS ratings.
Important note: This drive doesn’t operate on a SATA connection like a traditional 2.5″ SSD. You need a U.2 output on your setup, so ensure your motherboard has this available.
The other main part of how the P4510 earns its price tag is its TLC-based lithography.
Intel, which is one of the most reputable manufacturers for enterprise-tier storage, uses this TLC setup to achieve a mean time between failure (MTBF) of 1.5 million hours.
The drive is also optimized when compared to many higher-end SSDs for great temperature ranges and low vibration ratings (clearly this level of quality demonstrates its focus for critical enterprise server usage).
The longevity is a stunning offering and we know that some users will specifically be after a 8TB TLC drive, but the idea that QLC is always a huge problem is a bit of an over-simplification for many users.
Yes, manufacturers use QLC architecture to meet mainstream price points, but the best options like our top Samsung QVO pick dramatically increase the TBW to double that of its previous iteration/many competitors.
When considering QLC vs TLC, the latter may have a lower risk of issues in the long run, but a high-quality QLC drive also has great longevity, the difference between the two comes at a cost so dramatic that it doesn’t seem worth it unless you need the additional perks of the drive.
The P4510 may be the better storage (if you have a U.2 connection), but it costs nearly twice the price! For most mainstream users, we’re not sure if it’s worth it. SSDs with significantly less TBW than the Samsung 870 are used by millions of people. The P4510 and its specs are catered for enterprise/server usage.
So yes, if you’re working in a very demanding environment that will need lots of data overwriting and the lowest possible risk for a very large SSD (production use, business-critical infrastructure/VMs, etc.) or you simply are after the best 8TB drive regardless of cost, then the P4510 8TB is the pick for you.
Largest Cheap SSD Option: SAMSUNG 870 QVO 4TB X 2
OK, this option is a bit of a cheat, but we thought it was worth mentioning.
Typically, at RRP for SATA drives, XTB will be a similar price to 2 x X/2TB. Using the QVO 4TB as an example, 2 of these drives are often similar in cost to the 8TB offering.
With that said, because we’re specifically focussed on the largest SSDs available, it’s a market that sometimes has semi-limited supply, and in such markets nearly always comes occasional price gouging (i.e. grossly inflated options, like what we’re seeing with GPUs).
So if you want the largest solid-state drive possible but have cost in mind, whether it’s the 870 QVO or the other options on this list, please consider doubling up on an option half the size, as you may be surprised at how often they can be cheaper due to supply issues (or even discounting).
Best 16TB SSD? Best 100TB SSD?
As we mentioned at the beginning, we’ve focussed here on the biggest SSDs worth buying; that said, for completeness, we wanted to highlight that larger solid states do exist, but when you see the price tags, you’ll maybe see why we haven’t focussed on them!
Sabrent has come out with, Rocket XTRM-Q, a 16TB external solid-state drive. Very impressive and with a high-quality build that such a large size demands, but at just under $3,000, we can’t really recommend it unless you have a crazy budget.
If 16TB isn’t exciting enough for you, Nimbus is the company leading the charge at offering 32TB SSDs, 50TB SSD & an almighty 100TB SSD. And all it will set you back is a measly $40,000! They also appear to be looking at producing a 1000TB in the next few years – but you can bet it will cost more than a nice house.
So with no affordable options available now or anytime in the foreseeable future, we’d recommend sticking to the 8TB options above.
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About the author
perfect write-up exactly what I needed cheers.