047d:2041 — SlimBlade Trackball

Kensington

Vendor ID: 047d
Product ID: 2041
Combined: 047d:2041
Decimal: 1149:8257

What is this device?

This is the USB identifier for a SlimBlade Trackball manufactured by Kensington. The vendor ID 047d is registered to Kensington with the USB Implementers Forum, and 2041 is the product ID that Kensington assigned to this particular model. When you run lsusb on Linux, this device appears as 047d:2041 Kensington SlimBlade Trackball.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 047d:2041 Kensington SlimBlade Trackball

You can filter directly with lsusb -d 047d:2041, or get the full descriptor dump with lsusb -v -d 047d:2041. Kernel messages from dmesg show the same pair as idVendor=047d, idProduct=2041.

Windows

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

USB\VID_047D&PID_2041
USB\VID_047D&PID_2041&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_047D&PID_2041"

macOS

$ system_profiler SPUSBDataType
    SlimBlade Trackball:
      Product ID: 0x2041
      Vendor ID: 0x047d  (Kensington)

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:

047d  Kensington
	2041  SlimBlade Trackball

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