2x1 intelligent 3G/HD/SD-SDI change-over are multi bit-rate change-over providing intelligent input switching in studio and broadcast applications. The unit provides the ability to change between inputs based on input signal integrity of both inputs and features 1x8 distribution amplifier of its output. A passive relayed bypass of both inputs enables full redundancy in case of mains or card failure. The product can also be configured as dual 2x4 distribution amplifier or 2x1 change-over and 1x4 distribution amplifier of any of the inputs. A passive relayed bypass of both inputs enables full redundancy in case of mains or card failure.