Atlona AT-2VGA300SL 1x3 VGA Video + Stereo Audio CAT5 Extender and Splitter + loop-out (Sender Unit) Extends VGA and stereo audio over one UTP CAT5 cable for long range transmission up to 1000ft (300m) 1 VGA local loop output plus 2 CAT5 RJ45 outputs with chainable function to extend working range beyond 1000ft Supports resolutions up to 1600x1200 @85Hz Designed for use with AT-VGA300RL (receiver unit), sold separately