- Description
- Total Video Inputs
- Total Video Outputs
- Total Aux Outputs
- SDI Rates
- Total Audio Inputs
- Total Audio Outputs
- Timecode Connections
- Reference Input
- Video Input Re-Sync
- Frame Rate and Format Converters
- SDI Video Inputs
- SDI Audio Inputs
- Extra Audio Inputs
- SDI Video Outputs
- SDI Audio Outputs
- Extra Audio Outputs
- SDI Program Outputs
- Down Converted SDI Program Outputs
- SDI Preview Outputs
- SDI Multi View Outputs
- HDMI Multi View Outputs
- Webcam Output
- Remote
- Control Panel Connection
- Internal Timecode Generator
- Talkback
- Tally Output
- Computer Interface
- SD Video Standards
- HD Video Standards
- Ultra HD Video Standards
- SDI Compliance
- Video Sampling
- Color Precision
- Color Space
- SDI Auto Switching
- Upstream Keyers
- Downstream Keyers
- Advanced Chroma Keyers
- SuperSource
- Talkback Support
- Mix Minus Support
- Linear/Luma Keyers
- Transition Keyer (Stinger/DVE)
- Total Number of Layers
- Pattern Generators
- Color Generators
- DVEs
- Control Panel
- Routable Windows
- Tally
- Windows Source Labels
- Multi View Monitoring
- Multi View Video Standard
- Media Players
- Channels
- Media Pool Still Image Capacity
- Media Pool Clip Capacity
- Media Player Clip Length in 720 HD
- Media Player Clip Length in 1080 HD
- Media Player Clip Length in Ultra HD
- Media Pool Still Image Format
- Media Pool Video File Format
- Media Pool Audio File Format
- Interface
- Front panel
- Processing Delay
- Audio Mixer
- Down Conversion
- Control Panel Included
- Software Updates
- Configuration
- Power Supply
- Power Usage
- Physical Installation
- Operating Temperature
- Storage Temperature
- Relative Humidity
- Shipping details
- Reviews
ATEM 4 M/E Constellation 4K Plus is a massive 4 M/E Ultra HD live production switcher. It features 80 standards converted 12G-SDI inputs, 48 12G-SDI aux outputs, 4 DVEs, 16 ATEM Advanced Chroma Keyers, 4 media players, 4 independent Ultra HD multi-views, 2 SuperSource processors and more. You even get built in talkback and a professional 156 channel Fairlight audio mixer with EQ and dynamics!
Connections
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.

Standards
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.
Product Specifics
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
Multi View Monitoring
4 x 16 Multiview pattern options for up to 64 total views.
Select HD or Ultra HD.
Media Player
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.
Display
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.
Processing
< 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.
Software
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.
Operating Systems

Mac 14.0 Sonoma,
Mac 15.0 Sequoia or later.

Windows 10 and 11.
Windows 11 for ARM
Power Requirements
2 x Internal 100 - 240 AC 50/60Hz.
400 W max.
Physical Specifications

Physical Installation
4 rack units height.
Environmental Specifications
0° to 40° C (32° to 104° F)
-20° to 60° C (-4° to 140° F)
Our couriers will try to get your order delivered the day after your order is placed with us. The cut-off time for next day delivery is one pm on that day.
It is the customer's responsibility to ensure someone is available to sign for receipt of the goods at the delivery address provided. If our courier is unable to deliver for any reason, you may be invoiced for the attempted/failed delivery backcharge. Please double check your address is correct. Thank you.