07b8:b21b — HWU54DM
AboCom Systems Inc
- Vendor ID
- 07b8
- Product ID
- b21b
- Combined
- 07b8:b21b
- Decimal
- 1976:45595
What is this device?
This is the USB identifier for a HWU54DM manufactured by AboCom Systems Inc. The vendor ID 07b8 is registered to AboCom Systems Inc with the USB Implementers Forum, and b21b is the product ID that AboCom Systems Inc assigned to this particular model. When you run lsusb on Linux, this device appears as 07b8:b21b AboCom Systems Inc HWU54DM.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 07b8:b21b AboCom Systems Inc HWU54DM
You can filter directly with lsusb -d 07b8:b21b, or get the full descriptor dump with lsusb -v -d 07b8:b21b. Kernel messages from dmesg show the same pair as idVendor=07b8, idProduct=b21b.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_07B8&PID_B21B USB\VID_07B8&PID_B21B&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_07B8&PID_B21B"
macOS
$ system_profiler SPUSBDataType
HWU54DM:
Product ID: 0xb21b
Vendor ID: 0x07b8 (AboCom Systems Inc)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:
07b8 AboCom Systems Inc b21b HWU54DM