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Mini PC Storage: M.2 Drives by Slot and Length

NVMe and M.2 drives, matched to the slot length and PCIe generation each mini PC actually has.

What to look for

Length comes first. An M.2 slot is cut for a specific length, usually 2280, and a shorter 2230 or 2242 drive has nothing to screw into; adapters are out of scope here. After that the PCIe generation decides speed rather than compatibility, so a 5.0 drive works in a 4.0 slot and runs at 4.0. We note that rather than letting you pay for a number the machine cannot reach. Heatsinks and double-sided drives are a clearance question in a compact chassis, and those rows carry a note.

Pick your machine and the list becomes the parts that fit it, with the reason beside each one.

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Before you buy

Will any M.2 drive fit?

No. The slot has a length, usually 2280, and a shorter 2230 or 2242 drive does not screw down in it. Adapters exist and are out of scope here. The length is on every row and the selector filters by what your machine actually takes.

Is a PCIe 5.0 drive worth it?

Not in a machine with PCIe 4.0 slots, where it runs at 4.0 speed. We note that on the row. Buy 5.0 only if the slot is 5.0 or you plan to move the drive to a machine that is.

Does the heatsink matter?

It matters for clearance more than for temperature. A drive with a tall heatsink may not close under the lid of a compact chassis, so those rows carry a note to check before ordering.

What about the second slot?

On several machines the second M.2 slot is slower than the first, or SATA only. Where the manufacturer publishes that, we record it; where they do not, the row says not confirmed rather than guessing.

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