How to find last-added USB device in Windows?

Try this.

In order to determine the last time the device was connected to the system, we have to navigate to the following Registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses.

DeviceClasses Contains information about the device interfaces on the system. There is a subkey for each device interface class and entries under those subkeys for each instance of an interface that is registered for the device interface class.

Read more info.

Or use USBDeview.

USBDeview is a small utility that lists all USB devices that currently connected to your computer, as well as all USB devices that you previously used.

_{See Reference}

I should have googled a second longer before posting :)

There's a free application called "USBDeview" that does just this, with the ability to sort on last plug/unplug date.

http://www.nirsoft.net/utils/usb_devices_view.html

And if this one didn't work, I was about to next try another free utility called "USBLogView", which shows USB information for any device that is plugged/unplugged from the system while the utility is open.

http://www.nirsoft.net/utils/usb_log_view.html

I found the device just fine, labeled with a nicely generic "USB Input Device", rather than the actual product and model name (which appears just fine in USBDeview).