Nine-screen Processing HDMI video processor allows you to create a gorgeous large-scale video walls and digital signage displays via LCD splicing screens.HDMI signal interface with audio decoding, audio and video perfect synchronization, so stunning! 1 Input and 9 outputs: Display HDMI/DVI input 4K@30Hz ,output 1920x1080P@60Hz. Be ompatibled with laptop,computer, set-top box, DVD player etc. Supports one 4K@30Hz signal input and nine 1080P@60Hz signal outputs, with a total output resolution of 4K. Plug and play,180° Rotation: No need any app,quick and easy set up.Support 180°screen rotation function,the output device requires no more than 1080p @ 60 Hz. Specification: HDMI/DVI input: 3840x2160P 24/30Hz and below input. Support input HDMI 1.4, HDCP 1.4; HDMI outputs: 1920 x 1080P@60Hz HD resolution output; 5.1 CH Audio Out Ports: 5.1 CH Audio is an optical audio output for lossless digital sound,it can be connected to external speakers, sound bars, amplifiers, etc.