Blackmagic Design ATEM 2 M/E Production Studio 4K, 4 Upstream & 2 Downstream Keyers, 22-Input Audio Mixer, 20 6G-SDI & 1 HDMI Inputs BlackMagic Design ATEM 2 M/E Production Studio 4K - Software CD with ATEM Software Control Panel - BlackMagic Design 1 Year Limited Warranty This Item Includes: Total Video Input: 20 Total Video Output: 13 SDI Video Input: 20 x 10-bit SD/HD/Ultra HD 4K switchable. 2 channel embedded audio HDMI Video Input: 1 x HDMI type A. 10-bit SD/HD/Ultra HD 4K switchable. 2 channel embedded audio