066b:2203 — USB100TX Ethernet [pegasus]

Linksys, Inc.

Vendor ID: 066b
Product ID: 2203
Combined: 066b:2203
Decimal: 1643:8707

What is this device?

This is the USB identifier for a USB100TX Ethernet [pegasus] manufactured by Linksys, Inc.. The vendor ID 066b is registered to Linksys, Inc. with the USB Implementers Forum, and 2203 is the product ID that Linksys, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 066b:2203 Linksys, Inc. USB100TX Ethernet [pegasus].

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 066b:2203 Linksys, Inc. USB100TX Ethernet [pegasus]

You can filter directly with lsusb -d 066b:2203, or get the full descriptor dump with lsusb -v -d 066b:2203. Kernel messages from dmesg show the same pair as idVendor=066b, idProduct=2203.

Windows

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

USB\VID_066B&PID_2203
USB\VID_066B&PID_2203&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_066B&PID_2203"

macOS

$ system_profiler SPUSBDataType
    USB100TX Ethernet [pegasus]:
      Product ID: 0x2203
      Vendor ID: 0x066b  (Linksys, 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:

066b  Linksys, Inc.
	2203  USB100TX Ethernet [pegasus]