The Adder CATX-MDP-USBA MiniDisplayPort Computer Access Module is a highly compact device that allow you to extend your MiniDisplayPort equipped computer over CATX cable up to 984 Feet/300 meters. The CAM connects to the MiniDisplayPort video connector plus USB and Audio ports on your computer and then connects via CAT 5, 5e or 6 cabling to the AdderView CATx KVM switches and/or the AdderLink X100 or X200 extender receivers (sold separately), each of which can be located up to 984 Feet/300 meters from the module. Your video display, keyboard, mice and speakers are then all linked to the remote device.