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Definition: EDSFF


(Enterprise and Datacenter Standard Form Factor) A standard hardware interface for NVMe "gumstick" solid state drives (SSDs) in rack-mounted datacenter servers. Unlike the M.2 desktop format, EDSFF drives are hot swappable and wider for more storage. Built-in heat sinks handle higher heat.

Long (L) and Short (S) Formats
E1.L and E1.S drives are designed to be front mounted vertically in a 1U server rack, while E3.L and E3.S go into a 2U server. See NVMe.




An E1.S NVMe SSD
The heat sinks on this KIOXIA E1.S drive enable it to dissipate more heat than the M.2 format. (Image courtesy of KIOXIA America Inc.)