Best SSD for PS5 in 2026: What to Look For
The PS5 ships with around 667 GB of usable storage, and modern games eat through that fast. Adding an M.2 NVMe SSD is straightforward, but there are a few requirements you need to hit to avoid buying the wrong drive.
PS5 M.2 Slot Requirements
The PS5 has one M.2 slot that accepts NVMe SSDs only. SATA M.2 drives will not work. The slot supports M.2 2230, 2242, 2260, 2280, and 22110 form factors, so most drives on the market will fit physically.
| Requirement | Minimum | Notes |
|---|---|---|
| Interface | NVMe (PCIe 4.0 only) | SATA M.2 and PCIe 3.0 will not work |
| Read speed | 5,500 MB/s recommended | Sony's own figure; drives above this offer no real benefit |
| Capacity | 250 GB – 8 TB | 1 TB or 2 TB is the sweet spot |
| Heatsink | Recommended | Required if your drive doesn't have one built in |
| Form factor | M.2 (2230 to 22110) | M.2 2280 is the most common size |
Does Speed Actually Matter?
Sony recommends drives with at least 5,500 MB/s sequential read speed, which matches the PS5's internal SSD. Drives slightly below that threshold can still perform well, as real-world PS5 loading depends on controller efficiency and random read performance as well as peak sequential speed. The difference between a 5,500 MB/s and a 7,000 MB/s drive is not noticeable in gameplay.
PCIe 3.0 drives will not work at all. Sony blocks them at the system level. If you insert a Gen 3 drive, the PS5 will display an error and refuse to boot. PCIe 4.0 is the minimum requirement, not a recommendation.
Do You Need a Heatsink?
A heatsink is strongly recommended. The PS5 M.2 bay has limited airflow and sustained writes can cause thermal throttling on some drives, which reduces performance and longevity. You have two options:
- Buy a drive that comes with a heatsink included in the box
- Buy a third-party M.2 heatsink separately (they are inexpensive and widely available)
Make sure the heatsink fits within the PS5's bay. The maximum height with heatsink attached is 11.25mm. Most drives labelled PS5-compatible have been tested to fit within this limit.
What Capacity Should You Buy?
PS5 games average around 40–80 GB each. A handful of titles exceed 100 GB. Here is a rough guide:
- 500 GB: enough for 6–10 games, minimal headroom
- 1 TB: the most popular choice, holds roughly 10–20 games depending on game size
- 2 TB: ideal if you have a large library and want to avoid juggling installs
- 4 TB: future-proof and increasingly affordable
- 8 TB: the maximum supported after Sony's firmware update, for those who want everything installed at once
The combined storage shown in the PS5 settings includes both the built-in SSD and your expansion drive. You can move games between them freely at any time.
How to Install the Drive
Sony has made the installation process simple. Turn off the PS5 completely, remove the side panel, unscrew the M.2 bay cover, slot in the drive at an angle and secure it with the screw, reattach the cover and panel, then boot the console. The PS5 will automatically format the drive and it will appear as available storage.
What to Avoid
- SATA M.2 drives: physically compatible in shape but not supported by the PS5
- Very low-end DRAM-less NVMe drives: may have weak sustained performance that undermines the PS5 experience
- PCIe 3.0 drives: hard-blocked by Sony, the console will refuse to boot with one installed
- PCIe 5.0 drives: the PS5 slot is PCIe 4.0 only, so you would pay a Gen 5 premium for Gen 4 speeds
- Drives without heatsink support in cramped builds: check the height spec if buying a separate heatsink
Bottom Line
A PCIe 4.0 NVMe drive at 1 TB or 2 TB is the right choice for most PS5 owners. Look for drives that include a heatsink or budget a few extra pounds or dollars for a separate one. Speed ratings above 5,500 MB/s are largely marketing at this point for console use.