Aten VE157 VGA over CAT5 extender with MK Wall Plate up to 150m  @ 1280 x 1024 and 30m @ 1920 x 1200. The extender uses two CAT 5e/6 cables to connect local and remote units: one cable to transmit VGA video signal and the second cable is for power. It features Adjustable Gain Control by manually adjusting the signal strength to compensate for the distance. The VE157 supports wide screen format, hot-plugging and stereo audio. Data Sheet Manual