4 in 4out HDMI Matrix switch 4K30Hz 4K 4?4 HDMI matrix switch allows you to send any input to any output without the need to change any wires arround. It also can work as switch & splitter. This hdmi matrix 4 in 4 out supports resolution up to 4K 3840*2160@30Hz, 8KV ESD protection. Support Local LAN control from other computer by installing MatrixController (CD driver included) Switching options by: button, IR remote control, RS232 or Lan port without delay. Supports PCM, Dolby AC3, DTS5.1, DTS7.1 and DSD audio format. HDMI Matrix switcher 4?4 fits for standard 1U 19-inch Cabinet/Rack. Built-with Acrylic crystal button and LED backlit. 4 in 4 out hdmi matrix switcher and splitter Upgraded 4?4 Matrix switcher, Using the US 12.75G high-bandwidth original imported switching chip, so that all signals can be switched synchronously.