Cables To Go Model 35555 TruLink 4-Port VGA and USB 2.0/PS2 KVM Switch The TruLink 4-Port VGA/USB 2.0 KVM offers a quick and easy way to eliminate clutter from your desktop. This switch allows you to control four computers with just one keyboard, mouse, and VGA monitor. Connect the switch to your computers via USB and VGA using the included cables. The two downstream USB 2.0 ports can be used to share USB peripherals. Two types of switching (push button and hot keys) enable you to operate the switch in the most effective way for your application. Note: The USB port labeled as a keyboard port is designed for use with a standard keyboard which does not feature special functions, such as volume controls, media buttons etc. Using a keyboard which features special functions may cause errors in the functionality of the KVM.