Ahhh, nothing like reinstalling an older pc and not knowing what exactly some of the hardware is.  Once in a blue moon these utilities can become handy to fix the dreaded:

Here’s a couple utilities that help detect what the “Unknown Device” in the device manager is

http://www.halfdone.org/ukd/

http://www.zhangduo.com/udi.html

I personally have used the first one, and it doesn't’ require an install, so it’s great for portable / usb drives.