VKSMC-421, Multi Format Video Switch, allows users to switch between 4 video sources (VGA, HDMIx2, DP) and then delivers the selected video stream to HDMI output. The“Auto-switching / input auto detecting”function always routes the last connecting stream (as first priority) to the output. Audio embedder function embeds audio from a 3.5-mm source to an HDMI signal. EDID Auto learning ensures that every video source is displayed at the optimal resolution and format without any compatibility issue.