NVM Express NVMe over PCIe Transport Specification, Revision 1.4

Scope and location

NVMe host interface and its PCIe transport mapping are distinct from a mechanical module connector.

Revision 1.4, 31 July 2026; section 1.1/1.2, printed page 6; section 2, printed page 8. PDF pages 6 and 8 visually inspected.

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2026-10-08

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Recorded AI-assisted source inspection; not independent human approval or hardware testing.

This transport specification is not an M.2 mechanical standard. It does not establish a module key, host boot support, mating dimensions or universal compatibility. Copyright retained by NVM Express; link and factual paraphrase only.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.