The GVE200 DVI-D Video Extender System allows you to extend the distance between the computer system transmitter unit and the receiver display unit by up to 65 feet. It accomplishes this by means of a local transmitting unit and remote receiving unit (both included) connected by standard solid Category 5 twisted pair Ethernet cable (or Cat 5e and Cat 6). Each of the Extender unit is bi-directional so it can be either the local transmitting unit or the remote receiving unit.