067b:2501 — PL2501 USB-USB Bridge (USB 2.0)
Prolific Technology, Inc.
- Vendor ID
- 067b
- Product ID
- 2501
- Combined
- 067b:2501
- Decimal
- 1659:9473
What is this device?
This is the USB identifier for a PL2501 USB-USB Bridge (USB 2.0) manufactured by Prolific Technology, Inc.. The vendor ID 067b is registered to Prolific Technology, Inc. with the USB Implementers Forum, and 2501 is the product ID that Prolific Technology, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 067b:2501 Prolific Technology, Inc. PL2501 USB-USB Bridge (USB 2.0).
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 067b:2501 Prolific Technology, Inc. PL2501 USB-USB Bridge (USB 2.0)
You can filter directly with lsusb -d 067b:2501, or get the full descriptor dump with lsusb -v -d 067b:2501. Kernel messages from dmesg show the same pair as idVendor=067b, idProduct=2501.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_067B&PID_2501 USB\VID_067B&PID_2501&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_067B&PID_2501"
macOS
$ system_profiler SPUSBDataType
PL2501 USB-USB Bridge (USB 2.0):
Product ID: 0x2501
Vendor ID: 0x067b (Prolific Technology, 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:
067b Prolific Technology, Inc. 2501 PL2501 USB-USB Bridge (USB 2.0)