045e:00a4 — Compact Optical Mouse, model 1016

Microsoft Corp.

Vendor ID: 045e
Product ID: 00a4
Combined: 045e:00a4
Decimal: 1118:164

What is this device?

This is the USB identifier for a Compact Optical Mouse, model 1016 manufactured by Microsoft Corp.. The vendor ID 045e is registered to Microsoft Corp. with the USB Implementers Forum, and 00a4 is the product ID that Microsoft Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 045e:00a4 Microsoft Corp. Compact Optical Mouse, model 1016.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 045e:00a4 Microsoft Corp. Compact Optical Mouse, model 1016

You can filter directly with lsusb -d 045e:00a4, or get the full descriptor dump with lsusb -v -d 045e:00a4. Kernel messages from dmesg show the same pair as idVendor=045e, idProduct=00a4.

Windows

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

USB\VID_045E&PID_00A4
USB\VID_045E&PID_00A4&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_045E&PID_00A4"

macOS

$ system_profiler SPUSBDataType
    Compact Optical Mouse, model 1016:
      Product ID: 0x00a4
      Vendor ID: 0x045e  (Microsoft Corp.)

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. Microsoft Corp. official support →

Raw usb.ids entry

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

045e  Microsoft Corp.
	00a4  Compact Optical Mouse, model 1016

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