NVM-Express-Base-Specification-2_0-2021.06.02-Ratified-4 The NVM Express (NVMe) interface allows host software to communicate with a non-volatile memory subsystem. This interface is optimized for all storage solutions, attached using a variety of transports including PCI Express, Ethernet, InfiniBandTM, and Fibre Channel. The mapping of extensions defined in this document to a specific NVMe Transport are defined in an NVMe Transport binding specification. The NVMe Transport binding specification for Fibre Channel is defined in INCITS 556 Fibre Channel – Non- Volatile Memory Express - 2 (FC-NVMe-2).