The Master MSHG-800PLUS is a multi-channel professional 4K HDMI & MHL video signal generator equipped with 5 independent output ports. It includes 2 channels of HDMI 2.0 (HDCP 2.2) supporting 4K@60Hz, plus 3 composite channels of HDMI 1.4 & MHL 2.0, with ARC audio return function available for all ports. Compatible with 3D video output, the unit comes with abundant built-in standard test patterns, and supports EDID readout verification, HDCP on/off control and MHL charging voltage detection. It supports RS232 remote program control and one-click firmware upgrade via USB. Widely applied to R&D, production line QC and laboratory compatibility tests for TVs, monitors, automotive displays, mobile MHL devices and audio-visual terminals.