Datacolor DAC-50S HD-SDI to SD Analog Video Converter - Converts 3G/HD/SD-SDI input to analogue video and 2 unbalance analogue audio channels.   Two available output combinations with independent SDI loop through Can choose output options between 1 x YUV output & 1 x CV output or 1 x S-Video (Y/C) output & 2 x CV outputs. SDI loop through is unaffected by the adjustments of resolution setting to the analogue signal, users can connect the original video signal to other terminal device. Aluminum Alloy and Heavy Duty Design Super sturdy and durable. DAC series has a rugged metal housing for use in even the roughest conditions. Low heat dissipation, ideal for long hour operation in normal ventilated environment. In the box 1 x DAC-50S 1 x AD Switch DC 12V