Usb Access
Allows you to specify a list of USB devices that can be accessed directly by applications, such as Citrix Receiver. You can list devices, such as keyboards, signature pads, printers and scanners, as well as other USB devices. If this policy is not configured, the list of a detachable USB devices is empty.
To add devices to the list, enter the USB vendor identifier (VID) and product identifier (PID) as a colon separated hexadecimal pair (VID:PID). Put each device on a separate line. For example, to list a mouse with a VID of 046E and a PID of D626 and a signature pad with a VID of 0404 and PID of 6002, you enter:
046E:D626
0404:6002