Here is all possible class ID tht can be found on Windows
http://msdn.microsoft.com/en-us/library/windows/hardware/ff553426(v=vs.85).aspx
use special caution while blocking class ID..as the above class ID might be of generic USB device or Human Interface Device and blocking that will block many other things that u really dont want..
So from the above link verify what does that class id mean and always test your policies before applying it on production.