CFast Cards

CFX520I CFast 1.0 Card

Transcend's CFX520I CFast card integrates a rapid and robust SATA interface into a CF card form factor, offering improved performance and convenience for POS and embedded systems. Featuring enhanced speed and robust portability, CFast cards are designed to perform like SSDs, and as such are extremely capable when used as bootable drives.


  • RoHS compliant product
  • CFast Specification Version 1.0 compliant
  • Support S.M.A.R.T (Self-defined)
  • Support Security Command
  • Support Global Wear-Leveling, Static Data Refresh, Early Retirement, and Erase Count Monitor functions to extend product life
  • Built-in ECC (Error Correction Code) functionality and wear-leveling algorithm ensure reliable data transfer
  • Fully compatible with devices and OS that support the SATA 3.0Gb/s standard
  • Non-volatile SLC Flash Memory for outstanding data retention
  • SLC NAND Flash



Dimensions42.8 mm x 36.4 mm x 3.3 mm (1.69" x 1.43" x 0.13")
Form Factor
  • Compact flash card


Bus Interface
  • SATA II 3Gb/s


Flash Type
  • SLC NAND flash
  • 2 GB
  • 4 GB

Operating Environment

Operating Voltage
  • 3.3V±5%
Operating Temperature-40°C (-40°F) ~ 85°C (185°F)
Storage Temperature-40°C (-40°F) ~ 85°C (185°F)
Humidity0% ~ 95%
  • Acceleration: 490 m/s² (standard holding time: 11 ms, semi-sine wave, velocity change: 3.44 m/s)
Vibration (Operating)3 G (peak-to-peak), 5 Hz ~ 800 Hz (frequency)


Power Consumption (Max.)0.50 watt(s)


Read Speed (Max.)63 MB/s
Write Speed (Max.)28 MB/s
Mean Time Between Failures (MTBF)1,000,000 hour(s)
  • Speed may vary due to host hardware, software, usage, and storage capacity.


  • Three-year Limited Warranty
Warranty Policy
  • Please click here for more information about the Transcend Warranty Policy.
  • Due to the complexity and variety of industrial applications, Transcend cannot guarantee 100% compatibility with all platforms and under all scenarios. For special applications and environments, it is strongly suggested that you contact Transcend beforehand for clarification.

Order Information

  • TS2GCFX520I
  • TS4GCFX520I