0771:4455 — OMC45III

This is the USB identifier for a OMC45III manufactured by Observator Instruments BV. The vendor ID 0771 is registered to Observator Instruments BV with the USB Implementers Forum, and 4455 is the product ID that Observator Instruments BV assigned to this particular model. When you run lsusb on Linux, this device appears as 0771:4455 Observator Instruments BV OMC45III.

Linux

$ lsusb
Bus 001 Device 004: ID 0771:4455 Observator Instruments BV OMC45III

You can filter directly with lsusb -d 0771:4455, or get the full descriptor dump with lsusb -v -d 0771:4455. Kernel messages from dmesg show the same pair as idVendor=0771, idProduct=4455.

Windows

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

USB\VID_0771&PID_4455
USB\VID_0771&PID_4455&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0771&PID_4455"

macOS

$ system_profiler SPUSBDataType
    OMC45III:
      Product ID: 0x4455
      Vendor ID: 0x0771  (Observator Instruments BV)

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:

0771  Observator Instruments BV
	4455  OMC45III

• 0771:ae0f OMC45III

See all 2 devices from Observator Instruments BV →