ATEM 1 M/E Production Studio 4K The pioneering ATEM 1 M/E Production Studio 4K model switches back and forth between the video standards SD, HD and Ultra HD, allowing you to a wide variety of video devices such as: E. To connect cameras, hard drive recorders and computers. 7 pattern generators – 2 color generators – 4 chroma keyers – 4 upstream keyers – 2 downstream keyers – 7 linear/luma keyers – Full motion DVE – Stinger transitions – Large media pool with full motion clips – 3x AUX outputs – Weight: 2.6kg – Delay.