The Short Answer
Yes. The PS5 supports double-sided M.2 SSDs, and this has been true since Sony rolled out the M.2 storage expansion feature in firmware update 4.03. Unlike many small-form-factor PCs and some consoles with tighter internal clearances, Sony explicitly engineered the PS5’s expansion bay to accommodate SSDs with components on both sides of the PCB. The one condition is clearance: the drive plus any heatsink must fit within Sony’s size envelope of up to 110 mm long, 25 mm wide, and 11.25 mm thick total, which leaves roughly 8 mm of combined height budget for a double-sided drive with cooling hardware.
In practice, this means most retail double-sided NVMe drives — including popular models with NAND chips on both faces — work fine, especially when paired with a low-profile heatsink. Double-sided drives are actually common among high-capacity sticks, because packing 8 TB or 4 TB of NAND onto a single-sided PCB often isn’t physically possible at standard heights.
Compatibility at a Glance
| Factor | Requirement | Notes |
|---|---|---|
| Interface | PCIe Gen4 x4 M.2 NVMe | Gen3 drives work but underperform; Gen5 drives run at Gen4 speeds |
| Capacity | 250 GB to 8 TB | 8 TB cap raised from the original 4 TB limit in a later firmware update |
| Size | M.2 2230, 2242, 2260, 2280, 22110 | Up to 110 mm × 25 mm; 22110 uses the extra standoff Sony includes |
| Thickness | Up to 11.25 mm total including heatsink | Roughly 8 mm of clearance for a double-sided drive plus cooler |
| Double-sided components | Supported | Sony’s own diagram allocates space on both sides of the PCB |
| Speed rating | 5,500 MB/s or faster recommended | Sony’s guideline; slower drives install but load games more slowly |
| Heatsink | Recommended, low-profile | Graphite thermal pads or thin aluminum fin coolers fit best |
| Socket type | M-key | SATA-based M.2 drives (B+M key) are not supported |
What Determines It
Interface
The PS5’s expansion bay uses a PCIe Gen4 x4 NVMe interface with an M-keyed M.2 socket. Any NVMe drive — Gen3, Gen4, or Gen5 — will physically connect and be recognized, because NVMe is backward-compatible across generations. What matters for the double-sided question specifically is that the interface spec itself doesn’t care which side of the PCB the NAND sits on; the M.2 connector’s pins contact the bottom edge of the board regardless of component placement. The console does not support SATA M.2 drives or add-in cards, so a double-sided SATA stick like some older budget models would not work even though it fits physically.
Power
The M.2 slot on the PS5 supplies power through the standard M.2 connector (3.3V rail), and Sony’s slot design provides enough power delivery for typical consumer NVMe drives, including higher-capacity double-sided sticks that carry more NAND packages. Power draw is one area where double-sided drives were historically scrutinized in laptops, but the PS5’s bay has no battery constraint and its power budget comfortably handles drives in the 4–8 W range under load. There’s no user-facing power setting to configure — this factor is effectively a non-issue for compatibility.
Drivers
The PS5 runs its own firmware and needs no drivers from you. It supports the standard NVMe command set out of the box, so any compliant NVMe drive is recognized automatically. Double-sided versus single-sided construction has zero bearing on driver support — the drive’s controller handles NAND addressing internally, and the host never sees which physical side the chips are on. If a drive isn’t detected, it’s almost always a seating, formatting, or non-NVMe protocol issue rather than a driver gap.
Firmware
Sony periodically adjusts the M.2 feature set through system software updates, so running current firmware matters. Capacity limits have expanded over time (the 8 TB ceiling came via update rather than being present at launch), and bug fixes around drive detection have shipped the same way. To check your version: go to Settings → System → System Software → Console Information and note the System Software number. To update: go to Settings → System → System Software → System Software Update and Settings → Update System Software. Firmware has never restricted double-sided drives specifically — support was there from day one of the feature — but staying current avoids detection quirks with very new drive controllers.
Form Factor
This is the factor that actually governs double-sided compatibility. Sony’s official size diagram specifies a maximum total thickness of 11.25 mm measured from the motherboard’s standoff surface, with the console’s own spacer taking up part of that. The bay provides clearance beneath the PCB for back-side NAND — roughly 1.2 mm of additional depth is accounted for in Sony’s published diagram for components on the underside. Your real constraint is the heatsink: a typical 22 mm-tall tower cooler obviously won’t fit, but the common solutions all do:
- Thin aluminum fin heatsinks (usually 3–7 mm tall) plus a 1 mm thermal pad on top
- Graphite or copper shim coolers (under 2 mm)
- Drive-integrated heatsinks from manufacturers who design to console clearances
If your drive has back-side NAND, add roughly 1.2 mm to the drive’s own height before subtracting from the 11.25 mm budget. A double-sided drive with a slim aluminum cooler almost always lands between 7 and 10 mm total — inside the limit.
How to Check Yours
Before you buy or install, confirm your specific drive will work:
- Identify double-sided construction: Look at the drive’s spec sheet for the PCB layout, or search the model name plus “double-sided.” Photos on retailer listings often show both faces — back-side NAND is visible as black rectangular chips under the label area. Note that removing the label voids most warranties, so don’t peel it to check.
- Confirm the protocol: The spec sheet should say NVMe and PCI Express. If it says SATA, M.2 SATA, or AHCI, it won’t work regardless of layout.
- Measure total thickness: Add the drive’s PCB height (bare drives sit about 1.5 mm above the standoff; add ~1.2 mm if NAND is on the bottom), the heatsink height, and any thermal pad thickness. Keep the total at or under 11.25 mm.
- Confirm capacity and length: Between 250 GB and 8 TB, and one of the supported lengths (most drives are 2280 — 80 mm).
- In-console verification after install: Go to Settings → Storage → Console Storage. If the drive appears under M.2 SSD storage, it’s recognized. To format it, select the drive, choose the three-dot menu, and pick Format as M.2 SSD Storage.
If It’s Not Compatible
If your drive fails one of the checks above, you have workable alternatives:
- Swap the heatsink, not the drive: If the drive itself is fine but too thick with its cooler, replace a tall aftermarket heatsink with a low-profile graphite pad or a slim fin cooler rated for console use. This solves the vast majority of “doesn’t fit” cases with double-sided drives.
- Use the drive externally: Put the drive in a USB-C NVMe enclosure and use it as external storage. The PS5 supports external drives for PS4 games and for archiving PS5 games (archived PS5 titles must be copied back to internal storage to play, not run directly).
- Choose a confirmed console-safe model: Manufacturers including WD (Black SN850X line), Seagate, and Samsung publish console-compatibility guidance for their drives, and several sell versions bundled with low-profile heatsinks designed for the PS5’s clearance.
- Expand differently: If you simply need more space and don’t want to open the bay, deleting and re-downloading titles or moving PS5 games between internal and external storage to prioritize what’s installed is free, if inconvenient.
FAQ
Do I need a special heatsink because my SSD is double-sided?
No special type is required — the drive’s double-sided layout doesn’t change heatsink requirements, only the thickness math. Bottom-side NAND adds roughly 1.2 mm to the stack, so choose a cooler that keeps your total at or under 11.25 mm. Thin aluminum fin coolers and graphite pads both leave enough room when paired with a double-sided drive.
Will a double-sided SSD run slower or hotter in the PS5?
No performance penalty comes from the double-sided layout itself — the console’s interface can’t tell the difference. Thermals depend on the drive’s controller and NAND, its workload, and whether a heatsink is fitted, not on chip placement. The bay sits next to the console’s fan exhaust, and Sony’s own guidance recommends a heatsink to keep sustained transfer speeds consistent.
Does the heatsink Sony includes with some drives already fit double-sided models?
Drives sold as console bundles come with heatsinks engineered to Sony’s clearance spec, and those bundles include double-sided high-capacity models, so yes — if you buy the version with the factory cooler, thickness is already handled. If you’re moving a bare double-sided drive over from a PC build, budget for a new low-profile cooler as described above.
What happens if my drive is slightly too thick — will it damage the PS5?
The cover and bay won’t close properly if you exceed the clearance, and forcing it can put pressure on the drive connector or crack the side panels. There’s no error message warning you beforehand — the fit is purely mechanical. If the cover bulges or won’t seat flat after installation, power down, remove the cover, and switch to a thinner heatsink before continued use.
