Sony’s PlayStation 5 ships with a custom 825 GB solid‑state drive that handles all native game installations. The console also provides a user‑replaceable M.2 2230, 2242, 2260 or 2280 slot for NVMe SSDs that meet a minimum sequential read speed of 5,500 MB/s. This architecture replaces the older concept of removable memory cards used by earlier handhelds, positioning storage as a fixed or high‑performance module rather than a swappable peripheral.
Because the term "memory card" is loosely applied by retailers and fans, a variety of third‑party accessories appear promising plug‑and‑play expansion. In practice, only drives that match Sony’s interface, size, and speed criteria are recognized. External USB drives are supported, but they serve a limited role: they can store and play PlayStation 4 titles, while PS5 games must run from the internal SSD or a compliant M.2 SSD. Understanding these constraints is essential before any purchase.