CFexpress

CFexpress
A 256 GB CFexpress Type B card
Media typeMemory card
Read mechanism
  • Type A: 1 GB/s
  • Type B: 2 GB/s
  • Type C: 4 GB/s
Write mechanismVariable
StandardCFexpress standard
Developed byCompactFlash Association
Dimensions
  • Type A:
  • 20.0×28.0×2.8 mm (0.79×1.10×0.11 in)
  • Type B:
  • 38.5×29.8×3.8 mm (1.52×1.17×0.15 in)
  • Type C:
  • 54.0×74.0×4.8 mm (2.13×2.91×0.19 in)
Extended fromXQD card
Released2017

CFexpress is a standard for removable media cards proposed by the CompactFlash Association (CFA). The standard uses the NVM Express protocol over a PCIe 3.0 interface with 1 to 4 lanes where 1 GB/s data can be provided per lane. There are multiple form factors that feature different PCIe lane counts.[1] One of the goals is to unify the ecosystem of removable storage by being compatible with standards already widely adopted, such as PCIe and NVMe. There already is a wide range of controllers, software and devices that use these standards, accelerating adoption.

  1. ^ "CFA 5.1 Press Release" (PDF). 2016-09-07. Archived from the original (PDF) on 2016-12-21.