For use with the SMB CAT5 KVM Switches with CAT5 Extension, the Server Interface Module allows users to control their servers from a distance of up to 1000 feet. It offers a perfect solution for secure systems, large server rooms & farms, & test benches where the computer may be inaccessible to the user. A Server Interface Module is required with each server connected. Using the recommended CAT5 or CAT6 cables significantly reduces the amount of cable clutter behind the rack.