Drivers for EZ-USB® FX1™, FX2LP™ , and FX3 - KBA94413

Version: *B



What are the drivers for FX1™, FX2LP™, and FX3? 



The ZIP file attached with this knowledge base article contains the CyUSB3.inf and CyUSB3.sys files for FX3, FX2LP (CY7C68013A / CY7C68014A / CY7C68015A / CY7C68016A), and FX1 (CY7C64713)

The following operating systems are supported: 

  • Windows XP (32-bit and 64-bit)
  • Windows Vista (32-bit and 64-bit) 
  • Windows 7 (32-bit and 64-bit) 
  • Windows 8 (32-bit and 64-bit) 
  • Windows 8.1 (32-bit and 64-bit)
  • Windows 10 (32-bit and 64-bit). 

Use CyUSB3.inf in the path (after extracting the .zip file) shown in the table below for the respective OS. 

Operating SystemFolder path
Windows 10Win10\x86
Windows 10 x64Win10\x64
Windows 7Win7\x86
Windows 7 x64Win7\x64
Windows Vistavista\x86
Windows Vista x64vista\x64
Windows XPwxp\x86
Windows XP x64wxp\x64
Windows 8Win8\x86
Windows 8 x64Win8\x64
Windows 8.1Win8.1\x86
Windows8.1 x64Win8.1\X64

To match the device with the drivers, refer to the steps mentioned under the section "Matching Devices to the Driver " in the attached PDF file. Adding the VID/PID is already done in the attached inf file , so you can skip "Step A : Add the device's VendorID and ProductID to the CYUSB3.INF file".