Crucial P310 2TB PCIe 4.0 x4 NVMe M.2 2230

The Crucial P310 2TB is a fast, compact M.2 2230 SSD that's perfect for Steam Deck, ROG Ally, and other handheld upgrades. It hits up to 7,100 MB/s read and 6,000 MB/s write, with users reporting speeds that often beat the specs. It runs hot under sustained load, so a heatsink is a smart add-on, but for gaming it's one of the best 2230 drives you can buy.

The headline numbers are 7,100 MB/s sequential read and 6,000 MB/s write, with up to 1,000K random read IOPS. In our database, that puts the P310 in the 82nd percentile for speed and the 87th for random performance. Translation: it's one of the fastest 2230 drives on the market, and it trades blows with full-size Gen4 drives in burst workloads. Users report speeds that often exceed the advertised specs in CrystalDiskMark, which is always nice to see.

But the thermal story is worth paying attention to. Multiple owners mention the drive runs hot under sustained load, with one reporting 86°C. That's toasty. The P310 doesn't ship with a heatsink, and in a cramped handheld chassis there's not much airflow to spare. For short gaming sessions and quick level loads, you'll be fine. If you're hammering it with large transfers or running benchmarks back to back, you may see throttling. A thin aftermarket heatsink or thermal pad is a cheap insurance policy.

The P310's natural rivals are other high-end Gen4 drives, though most of them come in the 2280 size. The Western Digital Black SN850X is a perennial favorite and still one of the best all-around Gen4 drives, but it won't fit in a Steam Deck without modification. The Kingston FURY Renegade is similarly fast and similarly sized at 2280, so it's a non-starter for handhelds. The Samsung 9100 PRO is a newer Gen5 drive that's faster on paper, but again, wrong form factor and overkill for a handheld's PCIe Gen3 or Gen4 slot.

For actual 2230 competition, the field is thinner. The Micron T710 is a close cousin, since Micron owns Crucial, but it's aimed more at enterprise and workstation use. The real comparison for most buyers is against the stock drive in their handheld. Against a Steam Deck's original SSD, the P310 is a massive upgrade in both capacity and speed. Against another 2230 Gen4 drive, the differences come down to thermals and price more than raw throughput.

At USD 299 to USD 345 in the US, the P310 is not a budget drive. You're paying a premium for the 2230 form factor and the speed that comes with it. The best US deal in our data is at USD 299, while some listings push up to USD 345, so it's worth shopping around before you buy. In Europe, the spread is even wider, from EUR 404 to EUR 536, which is a meaningful gap. If you just need more storage and don't care about peak speed, a cheaper 2TB 2230 drive will save you real money. But if you want the fastest load times your handheld can manage, this is the drive to beat.

The Crucial P310 is a 2TB M.2 2230 NVMe SSD aimed squarely at handheld gaming PCs like the Steam Deck, ASUS ROG Ally, and MSI Claw. It's also a solid pick for compact laptops such as the Microsoft Surface or select Dell models. The 2230 form factor is the whole story here, since most full-size 2280 drives simply won't fit in these devices. Crucial rates it at up to 7,100 MB/s read and 6,000 MB/s write, which puts it near the top of the Gen4 speed charts for this size class. Pricing in the US runs from USD 299 to USD 345 depending on the vendor, so it's not the cheapest 2TB option, but it's one of the fastest you can actually install in a handheld.

People searching for a Steam Deck SSD upgrade usually want to know two things: does it fit, and is it faster than the stock drive? The answer to both is yes. The 2230 size drops right in, and the speed jump over the Deck's original drive is substantial. You'll also see questions about whether it works in a ROG Ally or a Surface laptop. It does, as long as the device takes a 2230 M.2 slot. Installation takes about five minutes if you're comfortable opening the back of your handheld.

One thing to keep in mind is that this is a QLC, DRAM-less drive. That's not a dealbreaker for gaming, but it does mean sustained write performance can dip once the SLC cache fills up. For most handheld gaming workloads, you'll never notice. For heavy video editing or constant large file transfers, you might.

Skip the P310 if you're building a desktop or upgrading a laptop with a full-size 2280 M.2 slot. You'll pay a premium for the 2230 form factor and get no benefit from it. The Western Digital Black SN850X or Samsung 9100 PRO will give you similar or better speed for less money in the 2280 size. Also skip it if you do heavy sustained writes, like video editing or large database work. The QLC NAND and DRAM-less design will show their limits there, and the thermal throttling will compound the problem. For those workloads, a TLC drive with DRAM cache is the better call.

Should you buy the Crucial P310 2TB? If you own a Steam Deck, ROG Ally, or MSI Claw and want to double or quadruple your storage while cutting load times, this is one of the best upgrades you can make. The speed is real, the capacity is generous, and the install is straightforward. The 5-year warranty and 440 TBW endurance rating are solid for a QLC drive, and Crucial's reputation for reliability shows up in the user reviews.

But it's not perfect. The heat issue is real, and if you plan to push sustained writes, you'll want to add a heatsink or at least a thermal pad. The lack of DRAM and QLC NAND means it's not the ideal choice for a workstation or heavy content creation rig. For handheld gaming and everyday laptop use, though, those compromises are easy to live with. The P310 earns its place as a top pick for 2230 storage.