{
  "slug": "e3-s",
  "term": "E3.S",
  "aliases": [
    "EDSFF E3 Short"
  ],
  "definition": "E3.S is the short member of the EDSFF E3 device family specified by SFF-TA-1008.",
  "note": "E3 includes SSDs and non-storage devices such as CXL devices, accelerators and network interfaces. The E3.S designation identifies an enclosure family, not an NVMe command set or performance rating. [c1]\n\nThe Rev 3.0 changes can make older devices incompatible. Rev 3.0a requires a mechanical key intended to prevent unsuitable older devices from entering direct-liquid-cooled systems and encountering damaging pressure; check the exact enclosure and host revision. [c1]\n\nNominal E3 width is 76 mm; short devices are 112.75 mm long, compared with 142.2 mm for E3.L. Thickness is 7.5 mm for single-thickness devices and 16.8 mm for 2T. These enclosure dimensions do not establish host support. [c1]",
  "status": "shipping",
  "advantages": [],
  "limitations": [],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-11-02",
  "related": [
    "edsff",
    "e1-s",
    "e1-l",
    "u2",
    "nvme",
    "cxl-memory"
  ],
  "citations": [
    {
      "id": "c1",
      "title": "SNIA SFF-TA-1008 Rev 3.0a: revision history and sections 4 and 5.7",
      "url": "https://members.snia.org/document/dl/26716",
      "accessed": "2026-11-02"
    }
  ],
  "provenance": [
    "Added as a distinct member previously misclassified as an EDSFF alias. Specification coverage is not a hardware qualification result."
  ]
}