0baf:0121 — USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B]
U.S. Robotics
- Vendor ID
- 0baf
- Product ID
- 0121
- Combined
- 0baf:0121
- Decimal
- 2991:289
What is this device?
This is the USB identifier for a USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B] manufactured by U.S. Robotics. The vendor ID 0baf is registered to U.S. Robotics with the USB Implementers Forum, and 0121 is the product ID that U.S. Robotics assigned to this particular model. When you run lsusb on Linux, this device appears as 0baf:0121 U.S. Robotics USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B].
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0baf:0121 U.S. Robotics USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B]
You can filter directly with lsusb -d 0baf:0121, or get the full descriptor dump with lsusb -v -d 0baf:0121. Kernel messages from dmesg show the same pair as idVendor=0baf, idProduct=0121.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0BAF&PID_0121 USB\VID_0BAF&PID_0121&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0BAF&PID_0121"
macOS
$ system_profiler SPUSBDataType
USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B]:
Product ID: 0x0121
Vendor ID: 0x0baf (U.S. Robotics)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:
0baf U.S. Robotics 0121 USR5423 802.11bg Wireless Adapter [ZyDAS ZD1211B]