07c9:b100 — AT-USB100

This is the USB identifier for a AT-USB100 manufactured by Allied Telesyn International. The vendor ID 07c9 is registered to Allied Telesyn International with the USB Implementers Forum, and b100 is the product ID that Allied Telesyn International assigned to this particular model. When you run lsusb on Linux, this device appears as 07c9:b100 Allied Telesyn International AT-USB100.

Linux

$ lsusb
Bus 001 Device 004: ID 07c9:b100 Allied Telesyn International AT-USB100

You can filter directly with lsusb -d 07c9:b100, or get the full descriptor dump with lsusb -v -d 07c9:b100. Kernel messages from dmesg show the same pair as idVendor=07c9, idProduct=b100.

Windows

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

USB\VID_07C9&PID_B100
USB\VID_07C9&PID_B100&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_07C9&PID_B100"

macOS

$ system_profiler SPUSBDataType
    AT-USB100:
      Product ID: 0xb100
      Vendor ID: 0x07c9  (Allied Telesyn International)

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.

The exact lines this page is generated from, in the upstream source file:

07c9  Allied Telesyn International
	b100  AT-USB100

See all 1 devices from Allied Telesyn International →