PS5 Slim uses the same M.2 NVMe Gen4 slot as original PS5 but with tighter heatsink clearance. Some bulky third-party heatsinks reportedly do not fit. Prefer factory-integrated heatsinks (Samsung 990 PRO Heatsink, WD Black SN850P) or low-profile aftermarket options. Same Gen4 x4 / 5,500+ MB/s / 11.25mm rules apply.
Upgrading before GTA 6? See the GTA 6 PS5 storage guide for what the install is expected to need and which capacity clears it.
PS5 Slim launched November 2023 as Sony's mid-generation redesign of the original PS5 — smaller footprint, detachable disc drive, cleaner internal layout. The M.2 expansion slot is functionally identical to original PS5: PCIe Gen4 x4 interface, 5,500 MB/s minimum read speed, 2280 form factor default, 8TB maximum capacity.
The difference that matters for buyers is physical clearance. PS5 Slim's expansion compartment is marginally tighter than the original PS5's, and community reports have identified specific bulky third-party heatsinks that do not fit the Slim's compartment cover cleanly. Sabrent's original PS5 heatsink and some Icy Box variants are the most commonly cited fit issues. Factory-integrated heatsinks designed within the 11.25mm envelope fit without concern.
The safest picks for PS5 Slim are drives with factory-integrated heatsinks specifically engineered within the 11.25mm envelope. WD Black SN850P (PS5 licensed) is designed by Sony's official partner and guaranteed to fit all PS5 variants including Slim. Samsung 990 PRO with Heatsink uses a low-profile factory heatsink that fits Slim cleanly. Corsair MP600 Pro LPX is labeled and designed as PS5-compatible with Slim clearance confirmed.
For bare drives paired with separate heatsinks, prefer low-profile aftermarket options over bulky designs. Read specific PS5 Slim fit confirmation in the heatsink manufacturer's compatibility documentation before purchasing. If in doubt, factory-integrated heatsink drives eliminate the compatibility question entirely.
If you buy a drive with a heatsink and discover it doesn't fit the Slim's expansion compartment cover, you have several options. Return the drive to the seller for a compatible alternative — most reputable Amazon sellers accept returns for compatibility issues. Remove the heatsink and replace with a lower-profile alternative from Sabrent or similar accessory brands (verify the replacement fits PS5 Slim specifically before purchasing). Or upgrade to a factory-integrated PS5 licensed drive (WD Black SN850P) that is guaranteed to fit.
Under no circumstances should you force-close the expansion compartment cover on a too-tall heatsink — this damages both the heatsink and potentially the PS5 chassis. If the cover doesn't close cleanly with light hand pressure, the heatsink is too tall.
PS5 Slim ships with 1TB of internal storage rather than the original PS5's 825GB — a modest capacity improvement that formats down to approximately 850GB usable. Better than original PS5 for storage headroom but still constrained versus modern AAA library sizes. Slim owners with active AAA libraries hit the 90%+ full threshold within 6-9 months of purchase.
The M.2 expansion slot is Sony's answer for Slim owners just as it is for original PS5 owners. A 2TB or 4TB expansion drive doubles or triples the Slim's total storage, providing headroom for GTA 6 and a comprehensive AAA library.
The functional compatibility is identical to original PS5 — Gen4 x4, ≥5,500 MB/s read, 2280 form factor, DRAM cache preferred. The practical difference is physical clearance: some bulky heatsinks that fit original PS5 do not fit Slim. Prefer factory-integrated heatsinks (WD Black SN850P, Samsung 990 PRO Heatsink, Corsair MP600 Pro LPX) or low-profile aftermarket options.
Community reports are mixed. The original Sabrent PS5 heatsink has caused fit issues on Slim for some users, while others report it fits with minor adjustment. If you own the Sabrent heatsink, test-fit before final installation. If you're buying new for Slim, prefer factory-integrated heatsink drives or explicitly Slim-compatible alternatives to avoid the issue.
PS5 Slim ships with 1TB internal storage, formatting to approximately 850GB usable after OS and system reserved partitions. Better than original PS5's 667GB usable but still constrained for modern AAA libraries. Adding a 2TB or 4TB expansion drive is the standard upgrade path.
Yes. PS5 licensed drives (WD Black SN850P specifically) are designed to fit all PS5 variants including Slim. This is the safest purchase path for Slim owners because Sony's licensing includes physical fit verification across the console lineup.
For guaranteed compatibility, WD Black SN850P (PS5 licensed, factory heatsink). For excellent factory-integrated alternatives, Samsung 990 PRO with Heatsink and Corsair MP600 Pro LPX. All three fit cleanly in Slim's expansion compartment. Live $/GB ranking on the table above shows current pricing.
No. Same Gen4 x4 interface, same custom I/O controller, same firmware behavior. Games perform identically on Slim's expansion drive as on original PS5's expansion drive. The physical clearance difference does not affect performance.