05f3:0264 — X-Keys Switch Interface, Composite Mode

This is the USB identifier for a X-Keys Switch Interface, Composite Mode manufactured by PI Engineering, Inc.. The vendor ID 05f3 is registered to PI Engineering, Inc. with the USB Implementers Forum, and 0264 is the product ID that PI Engineering, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 05f3:0264 PI Engineering, Inc. X-Keys Switch Interface, Composite Mode.

Linux

$ lsusb
Bus 001 Device 004: ID 05f3:0264 PI Engineering, Inc. X-Keys Switch Interface, Composite Mode

You can filter directly with lsusb -d 05f3:0264, or get the full descriptor dump with lsusb -v -d 05f3:0264. Kernel messages from dmesg show the same pair as idVendor=05f3, idProduct=0264.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_05F3&PID_0264
USB\VID_05F3&PID_0264&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_05F3&PID_0264"

macOS

$ system_profiler SPUSBDataType
    X-Keys Switch Interface, Composite Mode:
      Product ID: 0x0264
      Vendor ID: 0x05f3  (PI Engineering, Inc.)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

The exact lines this page is generated from, in the upstream source file:

05f3  PI Engineering, Inc.
	0264  X-Keys Switch Interface, Composite Mode

• 05f3:0203 Y-mouse Keyboard & Mouse Adapter
• 05f3:020b PS2 Adapter
• 05f3:0232 X-Keys Switch Interface, Programming Mode
• 05f3:0261 X-Keys Switch Interface, SPLAT Mode

See all 8 devices from PI Engineering, Inc. →