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Location of CYUSB.sys Driver | Cypress Semiconductor

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Location of CYUSB.sys Driver

Last Updated: December 29, 2011

Where can I find the latest CYUSB.sys driver?


After installing SuiteUSB 3.4 - USB Development Tools for Visual Studio, you can find the CYUSB.sys driver in the below directory.

C:\Cypress\Cypress Suite USB 3.4.7\Driver\bin

This driver supports 32 bit and 64 bit versions of Windows XP,Windows Vista and Windows 7. The below table shows the driver path for the respective OS.

Operating System

Folder path

Windows 7


Windows 7 x64


Windows Vista


Windows Vista x64


Windows XP


Windows XP x64


Windows 2000












Note: The customer needs to add their VID and PID in the inf file before binding the driver to the device. Refer the steps mentioned under the section "Matching Devices to the Driver" in the file C:\Cypress\Cypress Suite USB 3.4.4\Driver\CyUSB.pdf for instruction on

     1) Adding the VID/PID

     2) Binding the driver.

Also refer the knowledge base article on Drivers for FX1/FX2LP

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