The Blackmagic ATEM 1 M/E Production Studio 4K is a live event multicamera production switcher with 10 individual Ultra HD inputs built into a 1 RU chassis. Supporting NTSC/PAL/HD and Ultra HD video formats, the switcher connects to a wide range of cameras and sources, delivering a single program stream in UHD 4K, HD, or SD video. All this is done live and in real time with no rendering required. The switcher features a reference video input for synchronizing the switcher to other equipment using tri-level or black burst sync. Each input also features a frame synchronizer, which allows you to use cameras that do not feature genlock as well as input video from computer sources.