Step 3. Using the USB Devices over Network The SX Virtual Link Is the software program to make a communication between your computer and the USB devices connected to the device server. Ta use the USB devices aver the network, you have to connect to or disconnect from it using the SX Virtual Link. following the instructions in this section. If the SX Virtual Link Is not installed to your computer, install it by a Extract the SX Virtual Link file that you have downloaded at 2-1.