07fa:a904 — BeWAN ADSL

This is the USB identifier for a BeWAN ADSL manufactured by DrayTek Corp.. The vendor ID 07fa is registered to DrayTek Corp. with the USB Implementers Forum, and a904 is the product ID that DrayTek Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 07fa:a904 DrayTek Corp. BeWAN ADSL.

Linux

$ lsusb
Bus 001 Device 004: ID 07fa:a904 DrayTek Corp. BeWAN ADSL

You can filter directly with lsusb -d 07fa:a904, or get the full descriptor dump with lsusb -v -d 07fa:a904. Kernel messages from dmesg show the same pair as idVendor=07fa, idProduct=a904.

Windows

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

USB\VID_07FA&PID_A904
USB\VID_07FA&PID_A904&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_07FA&PID_A904"

macOS

$ system_profiler SPUSBDataType
    BeWAN ADSL:
      Product ID: 0xa904
      Vendor ID: 0x07fa  (DrayTek 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:

07fa  DrayTek Corp.
	a904  BeWAN ADSL

• 07fa:0846 ISDN TA [HFC-S]
• 07fa:0847 ISDN TA [HFC-S]
• 07fa:1012 BeWAN ADSL USB ST (grey)
• 07fa:1196 BWIFI-USB54AR 802.11bg
• 07fa:a905 BeWAN ADSL ST

See all 7 devices from DrayTek Corp. →