HDMI USB KVM Over IP Extender Amplifier 50M 170ft HD 1080P 3D HIM Mouse Keyboard HDMI+USB KVM extender includes transmitter and receiver.Transmitters combine HDMI video,audio and control signals,then transmit them through single CAT5e cable. Receivers get these signals, separate signals and rebuild video,audio and control ones, output through HDMI interfaces. It supports USB HIM mouse and keyboard, Remote IR(RX&gt;TX) and Bi-direction RS232 URAT. This product can achieve all functions through single CAT5e cable. Extending distance is 50 meters for 1080P 60Hz HD signal. Extending distance is 170ft(50 meters) at resoltions 1080P 3D or 1920x1200 60fs, and 270ft(80M)at 1080i/720P Through single CAT5e cable. Support audio formats, Dolby True HD, DTS-master etc. Support 3D singals ( all 7 formats), such as Frame Packing, Side-by-Side,Top-to-Bottom etc. Support EDID call back.