0a81:0101 — Keyboard

This is the USB identifier for a Keyboard manufactured by Chesen Electronics Corp.. The vendor ID 0a81 is registered to Chesen Electronics Corp. with the USB Implementers Forum, and 0101 is the product ID that Chesen Electronics Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 0a81:0101 Chesen Electronics Corp. Keyboard.

Linux

$ lsusb
Bus 001 Device 004: ID 0a81:0101 Chesen Electronics Corp. Keyboard

You can filter directly with lsusb -d 0a81:0101, or get the full descriptor dump with lsusb -v -d 0a81:0101. Kernel messages from dmesg show the same pair as idVendor=0a81, idProduct=0101.

Windows

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

USB\VID_0A81&PID_0101
USB\VID_0A81&PID_0101&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0A81&PID_0101"

macOS

$ system_profiler SPUSBDataType
    Keyboard:
      Product ID: 0x0101
      Vendor ID: 0x0a81  (Chesen Electronics Corp.)

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:

0a81  Chesen Electronics Corp.
	0101  Keyboard

• 0a81:0103 Keyboard
• 0a81:0203 Mouse
• 0a81:0205 PS/2 Keyboard+Mouse Adapter
• 0a81:0701 USB Missile Launcher

See all 6 devices from Chesen Electronics Corp. →