NVMe is a host-controller interface and command-set specification created specifically for solid-state storage that connects through the PCI Express (PCIe) bus. Its design exploits the very low latency and extreme parallelism of flash and other non-volatile media, unlike legacy protocols such as AHCI or SCSI that were tuned for slower spinning disks. Options that describe extensions of SATA, re-packaged SCSI commands, or fabric protocols carried over Ethernet do not match NVMe's role.
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Why does NVMe offer better performance compared to older protocols like AHCI?
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How does NVMe compare to legacy protocols like SCSI in terms of design purpose?