This device is a 4x4 HDMI matrix extender designed for network cable use. It comes equipped with 4 HDMI inputs, 4 RJ45 outputs, & 4 HDMI loop-outs. The 4 HDMI outputs deliver high-definition audio & video signals to 4 UHD displays locally, while the 4 RJ45 outputs extend these signals up to 70m away to 4 additional UHD displays via 4 receivers. It offers versatile control options, including RS-232 control, Ethernet control, button control, & remote control, making input & output switching & configuration effortless. This product is an ideal choice for applications such as security, school education, exhibition centres, multimedia conferences, & more. 
 
 
 Features: 
- Zero latency transmission 
 
- Support resolution up to 4K@60Hz 
 
- Support 4x HDMI inputs & 4x HDMI loop-out 
 
- Support 4x HDMI outputs via CAT6/6A/7 with transmission distance up to 70 meters 
 
- The receiver can extract the digital audio from the transmitter through the S/PDIF port 
 
- Support IR passback (20~60kHz) 
 
- Support PoC, only the transmitter needs to be plugged in 
 
- Support EDID management 
 
- Support button control, remote control, Ethernet control & RS-232 control 
 
- Lightning protection, surge protection, ESD protection