Conceptual illustration: Mais FPS, created with AI.
The PS5 storage menu has become an eviction notice. Install the new game, remove an old favorite, discover that your friends want to play the old favorite tonight. An extra drive sounds like the obvious escape, until a bargain USB SSD turns out not to do the job you imagined.
For a PS5, start with one question: do you want more PS5 games ready to launch, or somewhere to keep them between sessions? The first points toward a compatible M.2 expansion drive. The second can make USB storage useful. Buying around that distinction is more valuable than chasing the largest terabyte figure.
For more PS5 games ready to play, look inside
Sony’s M.2 guide specifies PCIe Gen4 x4 NVMe storage, 250GB–8TB, suitable heat dissipation and a physical fit within the expansion bay. Sequential reading of at least 5,500MB/s is recommended. A compatible installed M.2 can run PS5 games; M.2 SATA is unsupported.
Those details belong on your shopping checklist. The shape “M.2” alone is not enough, and the drive and its heatsink need to fit together. Check the exact model’s dimensions against Sony’s diagram, including the cooling hardware. Avoid discovering that a dramatic-looking heatsink is too tall only after opening the packaging.
Treat the purchase as a convenience upgrade rather than a promised graphics upgrade. More playable capacity means less juggling. It does not turn a quality mode into a higher-performance mode, and a larger capacity does not prove that every game will load faster.
Choose space for your regular multiplayer game, the current campaign, a few likely return visits and room for updates. You do not need your entire account installed to benefit. A drive that fits your rotation comfortably is more useful than an expensive trophy for a backlog you rarely open.
USB can park PS5 games and play PS4 games
Sony’s USB rules are clear: PS5 games can be stored on USB extended storage but must return to console or compatible M.2 storage to play. PS4 games can run directly from it. Compatible drives use SuperSpeed USB at 5Gbps or faster, with capacities from 250GB to 8TB.
That makes USB a sensible candidate if you revisit large PS5 games occasionally or keep a substantial PS4 library. It can spare you another download, but moving a PS5 game back remains part of the routine. Leave enough playable storage for that return trip.
A USB SSD can change transfer convenience; it cannot change the permission to run PS5 games from USB. Buying an even faster enclosure does not bypass the rule. Equally, an archive drive is not a bad purchase simply because it has a narrower job. It is a bad fit only if avoiding transfers was your whole reason for buying it.
Installing a drive is not backing up your progress
Before fitting an M.2, follow Sony’s instructions for your specific PS5 model and prepare a clear working area. Formatting can erase existing data, so verify that the selected drive contains nothing you need. This is a good moment to read the instructions, rather than improvising around a screw or cover that resists.
Afterward, move or install one game and verify where it runs. If a game misbehaves on the expansion, Sony recommends moving it to the console’s internal storage as a troubleshooting step. Keep the receipt and the exact product details while you establish that the new setup behaves as expected.
Your campaign is another matter. Sony’s storage table separates installations from saved data. An M.2 or USB game library is not a save backup. Full USB backup and restore is a separate PS5 function, and restoration erases existing destination-console data. Do not confuse it with moving a game icon between drives.
Xbox and Switch 2 are different shopping trips
Do not reuse the PS5 shopping list for an Xbox. Xbox Series uses a dedicated expansion-card format for additional storage matching its internal SSD’s role. Its USB-versus-expansion guidance distinguishes older compatible games and archives from titles requiring Series storage performance. A PC M.2 is not a substitute for that card.
Switch 2 has another rule: microSD Express, up to 2TB, for expanded game storage. An ordinary microSD from the original Switch does not become compatible game storage just because it physically fits. The console’s saved progress also remains in system memory.
Back on PS5, the decision is pleasantly straightforward: M.2 for a larger immediately playable PS5 rotation, USB for a local waiting room and compatible PS4 play. Buy the solution to the interruption you actually experience. Then let the storage menu go back to being a place you rarely visit.
