Massive 80‑input 12G‑SDI Ultra HD switcher with four DVEs, sixteen chroma keyers, SuperSource, 48 aux outputs, four Ultra HD multiviews and a 156‑channel Fairlight mixer, designed for high‑end broadcast and large‑scale live production.
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.
80
52
48
1.5G, 3G, 6G, 12G.
2 x balanced 1/4 inch jack,
2 x 64 channel BNC MADI in,
1 x 5-pin XLR Talkback.
2 x balanced 1/4 inch jack,
4 x 64 channel BNC MADI out,
1 x 5-pin XLR Talkback.
1 x 3-pin XLR Timecode In,
1 x 3-pin XLR Timecode Out.
Tri-Sync or Black Burst.
On all 80 inputs.
On all 80 inputs.
80 x 10-bit 720p, 1080i, 1080p, 2160p.
8 Ch embedded audio on all SDI inputs.
1 x 5 pin XLR Talkback.
52 x 10-bit 720p, 1080i, 1080p, 2160p.
16 Ch embedded into SDI output on all outputs.
1 x 5 pin XLR Talkback.
Any of the 48 SDI outputs.
8
Any of the 48 SDI outputs
4 x dedicated outputs,
Up to an extra 48 routable outputs.
None
1 x USB-C supporting 720p or 1080p at program frame rate.
RJ12 supports RS-422.
Ethernet supports 10/100/1000 BaseT. Allows direct connection between panel and chassis, or via network.
Yes
RJ45 for 3rd party talkback systems.
Added via ethernet connection to Blackmagic Design GPI and Tally Interface product. (Not included).
On any of the 48 SDI Outputs.
1 x USB-C port.
None
720p50, 720p59.94, 720p60
1080i50, 1080i59.94, 1080i60
1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60.
2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30, 2160p50, 2160p59.94, 2160p60.
SMPTE 292M, SMPTE 296M, SMPTE 424M, SMPTE 425M level A and B, SMPTE 2081‑1, SMPTE 2081‑10, SMPTE 2082‑1 and SMPTE 2082‑10, SMPTE 2082‑12.
4:2:2
10-bit.
Rec. 709, Rec. 2020
Automatically detects between 1.5G-SDI, level A and level B 3G‑SDI, 6G‑SDI and 12G‑SDI.
16
4
16
2
Yes
Yes
20
4 Stinger, 4 DVE.
28
21
2
4
Front fascia emergency switching, software or optional hardware panel.
64
Red for program and green for preview indication.
Yes
4 x 16 Multiview pattern options for up to 64 total views.
Select HD or Ultra HD.
4
Fill and key for each media player.
64
4
3200 frames
1600 frames
400 frames
PNG, TGA, BMP, GIF, JPEG and TIFF.
TGA Sequence.
WAV, MP3 and AIFF.
Minimum monitor resolution of 1366 x 768.
Built in HD LCD monitor for video, 42 LED buttons for setup and emergency switching, 8 source buttons, 4 transition buttons, 6 talkback selection and mix buttons, menu control knob and set button, front panel lock button.
< 10 lines.
298 Channel mixer
Selectable On/Off/Audio-Follow-Video.
Level and Peak metering.
Master gain control.
6 band parametric EQ, Dynamics including Expander, Gate, Compressor and Limiter.
1 x selectable HD down converted output.
ATEM Software Control Panel included free for macOS 14.0 Sonoma, macOS 15.0 Sequoia or later and Windows 10 and 11.
Using USB or Ethernet connection directly connected to Mac or Windows computers. Includes ATEM Setup Utility.
Set via ATEM Software Control Panel, excluding ATEM chassis IP address which is set via the ATEM Setup Utility connected via USB‑C to chassis.
Mac 14.0 Sonoma,
Mac 15.0 Sequoia or later.
Windows 10 and 11.
Windows 11 for ARM
2 x Internal 100 - 240 AC 50/60Hz.
400 W max.
4 rack units height.
0° to 40° C (32° to 104° F)
-20° to 60° C (-4° to 140° F)
0% to 90% non-condensing
ATEM 4 M/E Constellation 4K Plus
Welcome wallet with QR code for software download
1 Year Limited Manufacturer’s Warranty.
ATEM 4 M/E Constellation 4K Plus
Welcome wallet with QR code for software download