1、Purpose: This 1x4 HD Multimedia Interface extender splitter allows you to extend and distribute 1 HD Multimedia Interface sound and video signal to 4 HD Multimedia Interface displays simultaneously over CAT5e/6 cable while maintaining signal strength and lossless video. 2、Easy Installation, Superior Sound: The HD Multimedia Interface loop through on the transmitter provides convenience and flexibility for your installation. Provides up to 7.1 channels of surround or stereo digital sound. This product can be widely used in HD advertising system, conference system, etc. 3、POC Function: Supports POC function, which means that the power is supplied through the cable, and the operation of the whole kit can be supported by using only one power adapter, which reduces a lot of complicated operations and makes it more simple and convenient. 4、1080P Lossless Transmission 50m: Support up to 1080P 60Hz video resolution and support 3D visual enjoyment. Support sound and video synchronous transmission, superior sound and video synchronous transmission, stable, clear and fluent. 5、Plug and Play, Heat Dissipation: Plug and play, no driver required. Aluminum alloy shell is sturdy, the body is equipped with a heat sink, effectively reducing the heat damage to the machine and extending its service life. Item Type: HD Multimedia Interface Extender Splitter Material: Aluminium Alloy Transmission Range: up to Approx. 50m/164.0ft using CAT 5E/6 cable HD Multimedia Interface Specification: HD Multimedia Interface 1.3 and HDCP 1.2 Compatible Video Resolution: 480P60, 576i50, 720P50 60, 1080i50/60, 1080P50/60 TX Parameters: Input Port: HD Multimedia Interfacex1 Output Port: RJ45x4, HD Multimedia Interfacex1 HD Multimedia Interface Loop Output: Support Transmitter Size: Approx. 130x82x20mm / 5.12x3.23x0.79in RX Parameters: Input Port: RJ45x1 Output Port: HD Multimedia Interfacex1 Receiver Power Supply: POE from TX Receiver Size: Approx. 95x50x19mm / 3.74x1.97x0.75in 1 x Transmitter 4 x Receiver 1 x Power Adapter 1 x Instruction Manual