04a5:20f8 — Benq 5000

This is the USB identifier for a Benq 5000 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 20f8 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 04a5:20f8 Acer Peripherals Inc. (now BenQ Corp.) Benq 5000.

Linux

$ lsusb
Bus 001 Device 004: ID 04a5:20f8 Acer Peripherals Inc. (now BenQ Corp.) Benq 5000

You can filter directly with lsusb -d 04a5:20f8, or get the full descriptor dump with lsusb -v -d 04a5:20f8. Kernel messages from dmesg show the same pair as idVendor=04a5, idProduct=20f8.

Windows

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

USB\VID_04A5&PID_20F8
USB\VID_04A5&PID_20F8&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04A5&PID_20F8"

macOS

$ system_profiler SPUSBDataType
    Benq 5000:
      Product ID: 0x20f8
      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.)
	20f8  Benq 5000

• 04a5:20b0 S2W 3300U/4300U
• 04a5:20be Prisa 640BT
• 04a5:20c0 Prisa 1240UT
• 04a5:20de S2W 4300U+
• 04a5:20fc Benq 5000
• 04a5:20fe SW2 5300U
• 04a5:2137 Benq 5150/5250
• 04a5:2202 Benq 7400UT

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