One pair as a full functional module, no need of setting. One piece of CAT-6 cable can substitute HDMI cable to achieve long distance transmission. Follow the standard of IEEE-568B. Transmission distance can be up to 60M(Max) for 1080p using CAT-6 Cable. Auto-adjustment of feedback, equalization and amplify, the user does not need to care about the length of the cable. Compact size. Support 3D function Support IR Support highest video resolution 1080p. Support 165MHz/1.65Gbps per channel (4.95Gbps all channel) bandwidth. Support 8bit per channel (24bit all channel) deep color. Support uncompressed 2 channel audio such as LPCM.