04a5:12a6 — AcerScan C310U

This is the USB identifier for a AcerScan C310U manufactured by Acer Peripherals Inc. (now BenQ Corp.). The vendor ID 04a5 is registered to Acer Peripherals Inc. (now BenQ Corp.) with the USB Implementers Forum, and 12a6 is the product ID that Acer Peripherals Inc. (now BenQ Corp.) assigned to this particular model. When you run lsusb on Linux, this device appears as 04a5:12a6 Acer Peripherals Inc. (now BenQ Corp.) AcerScan C310U.

Linux

$ lsusb
Bus 001 Device 004: ID 04a5:12a6 Acer Peripherals Inc. (now BenQ Corp.) AcerScan C310U

You can filter directly with lsusb -d 04a5:12a6, or get the full descriptor dump with lsusb -v -d 04a5:12a6. Kernel messages from dmesg show the same pair as idVendor=04a5, idProduct=12a6.

Windows

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

USB\VID_04A5&PID_12A6
USB\VID_04A5&PID_12A6&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04A5&PID_12A6"

macOS

$ system_profiler SPUSBDataType
    AcerScan C310U:
      Product ID: 0x12a6
      Vendor ID: 0x04a5  (Acer Peripherals Inc. (now BenQ 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:

04a5  Acer Peripherals Inc. (now BenQ Corp.)
	12a6  AcerScan C310U

• 04a5:0001 Keyboard
• 04a5:0002 API Ergo K/B
• 04a5:0003 API Generic K/B Mouse
• 04a5:1a20 Prisa 310U
• 04a5:1a2a Prisa 620U
• 04a5:2022 Prisa 320U/340U
• 04a5:2040 Prisa 620UT

See all 62 devices from Acer Peripherals Inc. (now BenQ Corp.) →