10-in/6-out Rackmount 4K Ultra HD Live Production Video Switcher with 12G-SDI I/O Front Control Panel Multiviews 1DVE Tailor-made for Stunning Live Productions Searching for a powerful 4K video switcher for live productions? If that's the case, the Blackmagic Design ATEM 1 M/E Constellation 4K checks all the right boxes. This feature-laden Ultra HD video switcher gives you 10 standards converted 12G-SDI inputs and six 12G-SDI outputs, plus balanced audio and Ethernet control to the unit's internal 28-channel Fairlight audio mixer. You also get DVE, four keyers, media players, and a 16-way multi-view. You can take command using the ATEM Constellation 4K's front panel, which includes an easy-to-read LCD screen, or you can add an external hardware controller or deploy the free ATEM Software Control app. Built-in talkback is also included. To top it off, the ATEM Constellation 4K runs quietly and economically, thanks to its high-efficiency thermal system and low-speed cooling fans.Plenty of I/O for your production The ATEM 1 M/E Constellation 4K includes 10 independent 12G-SDI