The ATEM 4 M/E Constellation 4K Plus doubles the I/O of the original 4K Constellation model, stepping up to 80 12G-SDI inputs and 48 independent 12G-SDI ISO aux outputs at 10-bit. It connects to a wide range of cameras and sources, delivering video at resolutions up to 10-bit UHD 4K60 via the 12G-SDI programme outputs, or 1080p and 720p webcam output via USB-C.

Multiview and audio scale to match

Four multiview outputs give up to 16 routable windows each, able to display inputs, keyed video, graphics and stills from the media pool alongside the programme output. Each input connects to a built-in Fairlight audio mixer supporting up to 156 channels of audio, with two MADI inputs and four MADI outputs for audio mixing and routing.

Keying and generators for live production

Keying runs to 16 upstream and 4 downstream keyers, with chroma and luma keying plus colour and pattern generators built in. A frame rate and format converter sits on every input, and the switcher can be controlled as hardware or via software on Mac and Windows.

Key features

• Doubles the I/O of the original 4K Constellation model.
• 80 x 12G-SDI inputs and 48 independent 12G-SDI ISO aux outputs, supporting 12G-SDI at 10-bit.
• Delivers video up to 10-bit UHD 4K60 via the 12G-SDI programme outputs, or 1080p/720p webcam output via USB-C.
• Four multiview outputs with up to 16 routable windows each.
• 156-channel Fairlight audio mixer.
• 2 MADI inputs and 4 MADI outputs for audio mixing and routing.
• 16 upstream and 4 downstream keyers.
• Chroma and luma keyers, plus colour and pattern generators.
• Frame rate and format converter on every input.
• Hardware or software (Mac/Windows) control.