The DMON-4S packs four independent SDI-to-HDMI converters into a small, field-friendly package. It converts four separate SD/HD/3G-SDI streams to four independent mini-HDMI outputs, or combines all four SDI inputs into a single Quad-Split HDMI output carried on one or all four HDMI outputs. SDI connectors 2 and 4 can also be switched to active loop-through copies of inputs 1 and 2, while the unit converts inputs 1 and 2 to HDMI. All inputs use automatic signal detection, and a built-in LCD info screen with button controls sets the output options without DIP switches or a computer. In Quad-Split mode, you can choose which input's audio is used for every output.