I have been successful at redirecting USB devices (DVD-ROM, flash drive and card readers) with the help of but the access to those devices are extremely slow. So slow, in fact, that they would not be usable in production.
I added the following to the GPO of the client:
Allow RDP redirection of other supported RemoteFX USB devices from this computer - Administrators and Users
ve Templates\Windows Components\Remote Desktop Services\Remote Desktop Connection Client\RemoteFX USB Device Redirection
I also followed http://support.microsoft.com/kb/2653326
and added the registry entries to allow certain devices to be redirected.
All of this works just fine it's just that all of the devices are very slow.
The clients are Windows 7 SP1 and are using RDP to connect to a VM that is also Windows 7 SP1 running in Hyper-V on a Windows Server 2008 R2 SP1 server. I am on a local LAN and all devices have a 1GB connection. Any ideas on the slow performnace of redirected USB devices?