Enterprise & Data Center SSD Form Factor

The Enterprise & Data Center SSD Form Factor (EDSFF) is a storage form factor for use in the data center that is being developed by the EDSFF Working Group. It is based on Intel's former Ruler SSD standard.[1]

First products conforming to the EDSFF standard have been launched:

  • Intel launched the Intel® SSD D5-P4326 Series in May 2019[2], a 15.36 TB SSD in the E1.L form factor
  • Supermicro launched their first E1.L (Long) & E1.S (Short) chassis[3][4]
  • Echostreams launched their 2U 108-drive chassis, with up to 3.3 PB of all-flash storage[5]

Early products conforming to the EDSFF standard have been announced:

  • Intel has announced[6] a series of SSD devices
  • Supermicro has announced an enclosure or storage server[7] for 32 EDSFF SSDs.

EDSFF SSDs are made in two sizes: E1.L (Long) and E1.S (Short). Samsung's NF1 form factor competes with EDSFF[8], and both are meant to replace M.2 and U.2 drives in data center applications.


  1. ^ "EDSFF Working Group - EDSFF Form Factor". EDSFF Form Factor.
  2. ^ "Intel® SSD D5-P4326 Series". Intel. Retrieved 2019-05-28.
  3. ^ "Supermicro | Products | SuperStorage | 1U | 1029P-NEL32R". www.supermicro.com. Retrieved 2019-05-28.
  4. ^ "Supermicro | Products | SuperStorage | 1U | 1029P-NES32R". www.supermicro.com. Retrieved 2019-05-28.
  5. ^ "FlacheSAN2N108M-D5 2U with 108x hot-swappable Intel® EDSFF (E1.L) NVMe SSD bays". echostreams. Retrieved 2019-05-28.
  6. ^ "Intel Reimagines Data Center Storage with new 3D NAND SSDs". newsroom.intel.com. 15 February 2018. Retrieved 13 August 2018.
  7. ^ "SuperStorage SSG-136R-NR32JBF". www.supermicro.com. Retrieved 13 August 2018.
  8. ^ https://www.anandtech.com/show/13609/pcisig-warns-of-incompatibilities-between-m2-and-samsungs-ngsff