Belkin's Manual Data Switches come in a rugged, heavy-gauge metal enclosure to reduce radio frequency and electro-magnetic interference to a minimum. The actual switch is industrial grade material to provide many years of worry-free service, while minimizing contact resistance for 100% signal integrity. They have all lines connected straight-through and are completely reversible between the PC and the respective connected devices. No matter what kind of computer, device, or connector you have, Belkin has a switch for you.