049c:0002 — Keyboard (???)

This is the USB identifier for a Keyboard (???) manufactured by Acer Advanced Labs, Inc.. The vendor ID 049c is registered to Acer Advanced Labs, Inc. with the USB Implementers Forum, and 0002 is the product ID that Acer Advanced Labs, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 049c:0002 Acer Advanced Labs, Inc. Keyboard (???).

Linux

$ lsusb
Bus 001 Device 004: ID 049c:0002 Acer Advanced Labs, Inc. Keyboard (???)

You can filter directly with lsusb -d 049c:0002, or get the full descriptor dump with lsusb -v -d 049c:0002. Kernel messages from dmesg show the same pair as idVendor=049c, idProduct=0002.

Windows

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

USB\VID_049C&PID_0002
USB\VID_049C&PID_0002&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_049C&PID_0002"

macOS

$ system_profiler SPUSBDataType
    Keyboard (???):
      Product ID: 0x0002
      Vendor ID: 0x049c  (Acer Advanced Labs, 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:

049c  Acer Advanced Labs, Inc.
	0002  Keyboard (???)

See all 1 devices from Acer Advanced Labs, Inc. →