The KanexPro HDSC61D-4K is a 4-input HDMI, and 2-input VGA collaboration scaler ideal for switching up to six AV sources to one HDMI display. This switcher scaler also supports 4K resolutions up to 15 meters to match the latest display standards and performs a feature known as” Output Blacking” to mute the audio and video when switching between different sources, perfect for corporate boardrooms or small huddle rooms where HDMI, DisplayPort or VGA switching is needed to one display. This 6-Input scaler-switcher also provides audio de-embedding through three de-embedded audio outputs: via 3.5mm stereo, phoenix connectors and a Toslink optical output. For control options, it can be paired virtually with any 3rd party control system using RS-232 drivers or controllable by front-panel buttons and IR remote control.