083a:b004 — CPWUE001 USB/Ethernet Adapter (Accton Technology Corp.)

What is this device?

This is the USB identifier for a CPWUE001 USB/Ethernet Adapter manufactured by Accton Technology Corp.. The vendor ID 083a is registered to Accton Technology Corp. with the USB Implementers Forum, and b004 is the product ID that Accton Technology Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 083a:b004 Accton Technology Corp. CPWUE001 USB/Ethernet Adapter.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 083a:b004 Accton Technology Corp. CPWUE001 USB/Ethernet Adapter

You can filter directly with lsusb -d 083a:b004, or get the full descriptor dump with lsusb -v -d 083a:b004. Kernel messages from dmesg show the same pair as idVendor=083a, idProduct=b004.

Windows

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

USB\VID_083A&PID_B004
USB\VID_083A&PID_B004&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_083A&PID_B004"

macOS

$ system_profiler SPUSBDataType
    CPWUE001 USB/Ethernet Adapter:
      Product ID: 0xb004
      Vendor ID: 0x083a  (Accton Technology Corp.)

Driver help

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.

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

083a  Accton Technology Corp.
	b004  CPWUE001 USB/Ethernet Adapter

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