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The PlayStation 5 ships with 825GB of storage, and only about 667GB of that is actually usable. With modern blockbusters like Call of Duty eating well over 100GB each, that fills up fast. The good news: Sony built an internal M.2 expansion slot into every PS5, and installing a drive takes about ten minutes with a single screwdriver. The catch: the drive has to meet Sony’s rules — PCIe Gen4 x4, at least 5,500MB/s sequential read, and effective heat dissipation with the whole drive-plus-heatsink stack staying under 11.25mm tall. One more honest note before we start: NAND flash prices have climbed hard in 2026 thanks to AI demand, so SSDs cost noticeably more than their old record lows. Every price below is approximate — check the live price before you buy.
WD_BLACK SN850X 2TB with Heatsink — Best overall
The SN850X is the PS5 expansion drive by default for a reason. It reads at up to 7,300MB/s, well past Sony’s minimum, and WD sells a version with a heatsink dimensioned specifically for the PS5’s tight expansion bay, so fitment is a non-issue. Its Game Mode 2.0 firmware tunes the drive for the big sequential reads that modern game engines hammer it with. Two terabytes roughly triples your usable space, which means your rotation of current games finally fits.
Around $350. Check price on Amazon
Samsung 990 Pro 2TB with Heatsink — Best premium pick
Samsung’s flagship Gen4 drive tops the charts at up to 7,450MB/s and leads the pack in random read performance, which is the pattern the PS5’s I/O system leans on most. It’s also one of the most power-efficient drives here, so it runs cooler under sustained loads. You won’t feel a night-and-day difference over the SN850X in actual load times — the console itself is the ceiling — but if you want the best-spec drive money can buy, this is it. Get the heatsink version so it clears the bay.
Around $390. Check price on Amazon
Lexar NM790 1TB — Best budget pick
If you just need breathing room without the sticker shock, the NM790 is the value play. It’s rated up to 7,400MB/s, clears Sony’s speed floor easily, and frequently lands near the cheapest price-per-gigabyte from a name brand. It’s a DRAM-less design, but don’t let that scare you off: consoles mostly read large game assets rather than pounding the drive with writes, so the real-world difference is negligible. Pair it with an inexpensive slim M.2 heatsink (under 11.25mm tall) and you’re in business.
Around $75. Check price on Amazon
Seagate FireCuda 530 1TB with Heatsink — Best for constant installers
Do you install and delete games every week? Endurance is your stat. The FireCuda 530 carries one of the highest endurance ratings in its class, meaning it can absorb far more total writes before wearing out. It reads at up to 7,300MB/s, ships with a slim heatsink that fits the PS5 bay, and Seagate’s Rescue data recovery services are a nice safety net. For chronic game-swappers, this is the drive most likely to outlast the console itself.
Around $100. Check price on Amazon
WD_BLACK SN850P 1TB with Heatsink — Best officially licensed pick
The SN850P is WD’s PlayStation-licensed sibling of the SN850X, carrying Sony’s official seal of approval for PS5 expansion. Under the hood it’s the same proven platform with the same 7,300MB/s reads and a pre-fitted heatsink, just with guaranteed-compatibility peace of mind for players who don’t want to think about spec sheets. One terabyte is the sensible entry point if your library rotates through a handful of games at a time.
Around $140. Check price on Amazon
What to look for in a PS5 SSD
Speed floor, not speed records. Any drive rated at or above 5,500MB/s sequential read passes Sony’s bar, and every pick above does. Faster drives don’t load PS5 games meaningfully quicker — the console’s own I/O architecture is the bottleneck.
Heatsink fit. Sony requires effective cooling, and the total package must be 11.25mm tall or less. Buy a drive with a pre-fitted “PS5 compatible” heatsink, or add a slim aftermarket one to a bare drive.
Capacity. 1TB is the minimum worth buying; 2TB is the sweet spot now that 150GB+ installs are normal. With 2026 prices elevated, buy the capacity you actually need rather than overbuying “just in case.”
Endurance. Check the TBW (terabytes written) rating if you reinstall games constantly. For most players it’s a non-issue, but heavy swappers should favor drives like the FireCuda 530.
Skip Gen5. PCIe 5.0 drives work in the PS5 slot but get capped at Gen4 speeds, so you’re paying extra for bandwidth the console can’t use. A high-end Gen4 drive is the smarter buy.
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