1) One DVI video signal input; 2) One Audio signal input; 3) Sending card is set by USB; can be cascaded to drive a larger screen, up to 4 cards cascaded; 4) Two network outputs; single port maximum support 655360 pixels; 5) Support adjusting brightness manually (require working with outer box); three scales can be set:16-grade, 32-grade and 64-grade; 6) Support 60Hz and 30Hz output mode;