Introduction: The 4K 120M HDMI extender uses one single cat-5E or cat-6(recommended) cable instead of HDMI cable, you can extend the 4K@30Hz signal to 120 meters . The purpose of the extender is to achieve long-distance signal transmission with low-cost wires. Features: 1:120M long distance transmission: 2:Multi-receiver cascade transmission: 3:Low power consumption, low temperature and high safety. Length of CAT-5E/CAT-6 cable between Rx and TX ............ up to 120 meters HDMI input ......................... 4K/1080p/720p/576p/576i/480p/480i Support audio format ........................ DTS/Dolby/LPCM HDMI output ............... 4K30Hz/1080p/720p/576p/576i/480p/480i Max bandwidth .............................. 340MHz Max baud rate ....................................... 3.4Gbpsx3 Input video signal ................................. 0.5~1.5Volts p-p Output DDC signal ............................. 5Volts p-p (TTL) Input HDMI cable distance .......... 15m AWG26 HDMI standard cable Output HDMI cable distance ...... 15m AWG26 HDMI standard cable TX Max working current ...................................... 350mA RX Max working current ...................................... 200mA Power adapter format .................. Input:AC (50HZ, 60HZ) 100V-240V; Output: DC5V/1A Operating Temperature range .............................. (-15 to +55) Operating Humidity range ......................... 5% to 90%RH (No Condensation) Dimension (L x W x H) ........................................ 94x84x24(mm) TX Weight ............................................................. 223g RX Weight ........................................................... 223g Package Content: 1PCS Transmitter 1PCS Receiver 1Pair IR Cable 2PCS Power Adapter 1PCS User Guide