The Blackmagic ATEM 4 M/E Constellation 4K Plus is an exceptionally powerful Ultra HD live production switcher designed for large broadcast facilities, professional control rooms and high‑end event production. With an immense 80 independent 12G‑SDI inputs, each equipped with advanced standards conversion, the switcher allows every source to be connected in any SD, HD or Ultra HD format at any frame rate without requiring external converters. This makes it ideal for complex multi‑camera environments, mixed‑standard workflows and dynamic productions where flexibility and reliability are essential.

The switcher offers 52 SDI outputs and an impressive 48 dedicated aux outputs, allowing operators to route any signal to monitors, recorders, projectors or LED walls instantly. Four Ultra HD multiview displays provide configurable layouts with source labels, audio meters, tally indicators and preview or program status, ensuring complete overview and precise monitoring during live operation. With four powerful DVEs, operators can create smooth picture‑in‑picture, repositioning and animated transitions, while sixteen ATEM Advanced Chroma Keyers enable sophisticated green‑screen work for virtual studios, AR workflows and broadcast graphics.

Two independent SuperSource processors add a multilayer compositing engine capable of combining multiple sources into complex layouts, ideal for panel discussions, esports, news presentations and high‑impact productions. The integrated Fairlight audio mixer features 156 channels, including MADI expansion, EQ, dynamics and full audio embedding on every SDI input and output, providing studio‑grade sound mixing within the switcher. Built‑in talkback and XLR connections ensure seamless communication between directors, camera operators and production teams.

The ATEM 4 M/E Constellation 4K Plus includes an internal timecode generator, RS‑422 control, reference input, internal sync and a USB‑C webcam output that allows the switcher to function as a high‑quality video source for streaming and conferencing applications. Its advanced thermal design keeps the unit quiet and reliable, even under heavy load in long‑form productions. With Ethernet control for software panels and compatibility with ATEM Advanced Panels in 1 M/E, 2 M/E and 4 M/E configurations, the system integrates effortlessly into modern broadcast infrastructures.

Built for maximum performance, scalability and creative control, the ATEM 4 M/E Constellation 4K Plus delivers unmatched switching power in a compact rack‑mount design, setting a new standard for Ultra HD broadcast production.