1286:1fab — 88W8338 [Libertas] 802.11g
Marvell Semiconductor, Inc.
- Vendor ID
- 1286
- Product ID
- 1fab
- Combined
- 1286:1fab
- Decimal
- 4742:8107
What is this device?
This is the USB identifier for a 88W8338 [Libertas] 802.11g manufactured by Marvell Semiconductor, Inc.. The vendor ID 1286 is registered to Marvell Semiconductor, Inc. with the USB Implementers Forum, and 1fab is the product ID that Marvell Semiconductor, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 1286:1fab Marvell Semiconductor, Inc. 88W8338 [Libertas] 802.11g.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 1286:1fab Marvell Semiconductor, Inc. 88W8338 [Libertas] 802.11g
You can filter directly with lsusb -d 1286:1fab, or get the full descriptor dump with lsusb -v -d 1286:1fab. Kernel messages from dmesg show the same pair as idVendor=1286, idProduct=1fab.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_1286&PID_1FAB USB\VID_1286&PID_1FAB&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1286&PID_1FAB"
macOS
$ system_profiler SPUSBDataType
88W8338 [Libertas] 802.11g:
Product ID: 0x1fab
Vendor ID: 0x1286 (Marvell Semiconductor, 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:
1286 Marvell Semiconductor, Inc. 1fab 88W8338 [Libertas] 802.11g