0caf:3a20 — Mass Storage Device
Buslink
- Vendor ID
- 0caf
- Product ID
- 3a20
- Combined
- 0caf:3a20
- Decimal
- 3247:14880
What is this device?
This is the USB identifier for a Mass Storage Device manufactured by Buslink. The vendor ID 0caf is registered to Buslink with the USB Implementers Forum, and 3a20 is the product ID that Buslink assigned to this particular model. When you run lsusb on Linux, this device appears as 0caf:3a20 Buslink Mass Storage Device.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0caf:3a20 Buslink Mass Storage Device
You can filter directly with lsusb -d 0caf:3a20, or get the full descriptor dump with lsusb -v -d 0caf:3a20. Kernel messages from dmesg show the same pair as idVendor=0caf, idProduct=3a20.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0CAF&PID_3A20 USB\VID_0CAF&PID_3A20&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0CAF&PID_3A20"
macOS
$ system_profiler SPUSBDataType
Mass Storage Device:
Product ID: 0x3a20
Vendor ID: 0x0caf (Buslink)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:
0caf Buslink 3a20 Mass Storage Device