the main function is to divide a complete HDMI,DVI HD image signal into 4 blocks and 

assign to 4 video display unit (such as Rear projection unit, LCD TV, etc.), Complete with 

4 HDMI high-definition video display units to form a large dynamic image screen.

Features

* Support 1 DVI or HDMI input

* Input support HDMI1.4 ,HDCP1.4

* Support 4 HDMI outputs, 1 3.5mm audio output

* Input resolution include 1920x1080P 25/30/50/60HZ,3840x2160P 25/30HZ; 

* Output resolution include 1920x1080P 25/30/50/60HZ

* Input format: YUV422 16bit、RGB444 24bit; Output format: RGB444 24bit

* Support RS232 protocol (Net port RJ45)

* Easy to operate, plug and play

* DC12V/2A power adapter