16d0:09f4 — Axium AX-Mini4 Amplifier

MCS

Vendor ID: 16d0
Product ID: 09f4
Combined: 16d0:09f4
Decimal: 5840:2548

What is this device?

This is the USB identifier for a Axium AX-Mini4 Amplifier manufactured by MCS. The vendor ID 16d0 is registered to MCS with the USB Implementers Forum, and 09f4 is the product ID that MCS assigned to this particular model. When you run lsusb on Linux, this device appears as 16d0:09f4 MCS Axium AX-Mini4 Amplifier.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 16d0:09f4 MCS Axium AX-Mini4 Amplifier

You can filter directly with lsusb -d 16d0:09f4, or get the full descriptor dump with lsusb -v -d 16d0:09f4. Kernel messages from dmesg show the same pair as idVendor=16d0, idProduct=09f4.

Windows

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

USB\VID_16D0&PID_09F4
USB\VID_16D0&PID_09F4&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_16D0&PID_09F4"

macOS

$ system_profiler SPUSBDataType
    Axium AX-Mini4 Amplifier:
      Product ID: 0x09f4
      Vendor ID: 0x16d0  (MCS)

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:

16d0  MCS
	09f4  Axium AX-Mini4 Amplifier

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