067b:25a1 — PL25A1 Host-Host Bridge

Prolific Technology, Inc.

Vendor ID: 067b
Product ID: 25a1
Combined: 067b:25a1
Decimal: 1659:9633

What is this device?

This is the USB identifier for a PL25A1 Host-Host Bridge manufactured by Prolific Technology, Inc.. The vendor ID 067b is registered to Prolific Technology, Inc. with the USB Implementers Forum, and 25a1 is the product ID that Prolific Technology, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 067b:25a1 Prolific Technology, Inc. PL25A1 Host-Host Bridge.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 067b:25a1 Prolific Technology, Inc. PL25A1 Host-Host Bridge

You can filter directly with lsusb -d 067b:25a1, or get the full descriptor dump with lsusb -v -d 067b:25a1. Kernel messages from dmesg show the same pair as idVendor=067b, idProduct=25a1.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_067B&PID_25A1
USB\VID_067B&PID_25A1&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_067B&PID_25A1"

macOS

$ system_profiler SPUSBDataType
    PL25A1 Host-Host Bridge:
      Product ID: 0x25a1
      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.
	25a1  PL25A1 Host-Host Bridge

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