0928:ffff — Blank Oxford Device

This is the USB identifier for a Blank Oxford Device manufactured by PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd). The vendor ID 0928 is registered to PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd) with the USB Implementers Forum, and ffff is the product ID that PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd) assigned to this particular model. When you run lsusb on Linux, this device appears as 0928:ffff PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd) Blank Oxford Device.

Linux

$ lsusb
Bus 001 Device 004: ID 0928:ffff PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd) Blank Oxford Device

You can filter directly with lsusb -d 0928:ffff, or get the full descriptor dump with lsusb -v -d 0928:ffff. Kernel messages from dmesg show the same pair as idVendor=0928, idProduct=ffff.

Windows

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

USB\VID_0928&PID_FFFF
USB\VID_0928&PID_FFFF&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0928&PID_FFFF"

macOS

$ system_profiler SPUSBDataType
    Blank Oxford Device:
      Product ID: 0xffff
      Vendor ID: 0x0928  (PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd))

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:

0928  PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd)
	ffff  Blank Oxford Device

• 0928:8000 Firmware uploader

See all 2 devices from PLX Technology, Inc. (formerly Oxford Semiconductor, Ltd) →