The VideoEase VGA Balun allows one (1) VGA video channel to be connected via four (4) twisted pairs. Used in pairs, the VGA Balun is used in home or commercial applications as a smart, fast and cost-effective means of connecting VGA displays and projectors using twisted pair instead of coax cable. Ideal for classrooms, lecture halls, auditoriums, retail kiosks, video information displays, on-line advertising, tradeshows, hotel and convention centers, mobile presentations, collaborative viewing. Cat5 STP cable highly recommended