bout this item This HDMI extender has many features that enable to perform in a superior manner, Among those features you will find: 1. One pair as full functional module, no need of setting. 2. CAT-5e/6 cable can substitute HDMI cable to achieve long distance transmission. 3. Follow the standard of IEEE-568B. 4. Transmission distance can be up to 30 Meters for 1080p using CAT-6 cable.

The 4K 120M HDMI extender uses one single CAT-6(recommended) or CAT5e cable instead of HDMI cable, you can extend the HDMI1.3-1080P signal to 120 meters or HDMI2.0 4K@60Hz to 60 meters. The purpose of the extender is to achieves long-distance signal transmission with low-cost wires.