Inputs: 4-SDI, 4-HDMI Outputs: 1-ME, 1-Aux, 1-Multi Designed for broadcasters and A/V professionals, Blackmagic Design's ATEM Television Studio HD is a compact yet powerful and easy-to-operate solution. Four of each HDMI and SDI inputs are available on the rear of the chassis, and both sets of inputs support SD and HD resolution signals. The relatively small chassis can fit on a standard equipment rack with the separately available Teranex Mini Rack Shelf, so it can be brought on location for streaming video, or installed semi-permanently for recording or broadcasting from a studio.