Best External SSD for PS5 UK: Setup & Buying Guide
Running out of internal space on your PlayStation 5 is normal — modern titles often exceed 100GB. This guide explains how SSD for PS5 external storage works in the UK, what speeds you actually need, and when a drive like the CrucialPro X9 Portable SSD makes sense.

PS5 storage: internal, M.2 and USB explained
Sony supports three storage layers on PS5:
- Internal SSD — ships with the console; fastest loads for PS5-native games installed here.
- M.2 NVMe expansion — internal slot for compatible PCIe 4.0 drives; also supports PS5 games with full feature support when installed correctly.
- USB extended storage — external SSD or HDD via USB; ideal for PS4 titles and storing PS5 games you are not actively playing.
Confusion online often mixes these paths. An external USB SSD cannot replace internal storage for every PS5-native feature, but it is perfect for keeping a large library accessible without redownloading 150GB every time you rotate games — a pain point UK gamers repeatedly mention when upgrading from slow external hard drives.
Why upgrade from an external HDD?
PlayStation allows both HDD and SSD over USB, but the experience differs sharply. Copying a 100GB game from a hard drive can take well over an hour; the same task on a USB 3.2 Gen 2 SSD typically finishes in a fraction of that time. Loading PS4 backward-compatible titles from SSD also feels noticeably snappier.
You do not need the fastest benchmark champion unless you copy games daily. Community advice aligns with practical buying: prioritise reliability, sustained transfers and a sensible price per terabyte. That is where mid-tier drives rated around 1050MB/s earn their place.
What specs matter for PS5 USB storage?
USB interface
Sony specifies SuperSpeed USB 5Gbps or faster. USB 3.2 Gen 2 (10Gbps) drives such as the CrucialPro X9 Portable SSD meet the requirement with headroom. Include a quality USB-C cable and connect to the rear ports for stable power.
Capacity
1TB fills quickly if you keep more than a handful of AAA titles. Most UK households benefit from 2TB-class planning — see our dedicated 2TB external SSD guide for capacity maths.
Durability
Consoles sit in living rooms where drives get nudged. The CrucialPro X9 lists 2m drop resistance, useful if your storage shuttles between TV unit and desk.
Price and warranty
At £265.07 with a 12-month UK warranty and free tracked delivery on orders over £50, it sits in the premium portable tier — compare against how often you would otherwise pay for slow copies or extra cloud subscriptions.
How to set up USB extended storage on PS5
- Connect your external SSD to a USB port on the PS5 (rear ports recommended).
- Open Settings → Storage → USB Extended Storage.
- Choose Format as USB Extended Storage. This erases the drive — back up files on a PC first.
- Move games via Game Library → press Options → Move to USB Extended Storage.
Remember: PS5-native games stored on USB must be moved back to internal storage (or M.2) to play. PS4 games can launch directly from USB on PS5.
SSD for PS5 vs upgrading internal M.2
Internal M.2 remains the choice if you want PS5 games to run with full internal-speed loading. External SSD wins on simplicity — no screwdriver, no heatsink compatibility spreadsheets, and you can reuse the same drive on a laptop or Xbox.
Many UK players use both: M.2 for current favourites, USB SSD for archive and PS4 backlog. If you only buy one upgrade this year, external SSD is usually the faster win for households drowning in downloads.
Ready to expand your library? The CrucialPro X9 Portable SSD delivers 1050MB/s over USB 3.2 Gen 2 — ideal for PS5 USB extended storage and everyday PC backups.
Frequently Asked Questions
Can you play PS5 games directly from an external SSD?
PS5-native games must be moved to internal or M.2 storage before playing. You can store them on USB SSD to save space, then copy back when needed — still much faster than HDD archives.
Is 1050MB/s fast enough for PS5 USB storage?
Yes. Sony's USB extended storage spec tops out well below PCIe Gen 4 speeds. Drives like the CrucialPro X9 at 1050MB/s saturate practical USB copy workloads without overspending on Thunderbolt-class hardware.
Will formatting for PS5 erase my PC files?
Yes. PS5 extended storage formatting wipes the disk. Back up to a PC or cloud first, or dedicate a drive to console use — many UK gamers keep one portable SSD for PlayStation and another for laptop backups.