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Blackmagic Design ATEM4CHD ATEM 4 M/E Constellation HD Live Production Switcher (2 RU)

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Description

Powerful live event HD switching, supporting up to 40 individual 3G-/HD-SDI inputs built into a 2 RU chassis, is at hand with the Blackmagic Design ATEM 4 M/E Constellation HD Live Production Switcher. Supporting 3G-SDI and HD-SDI signals, the switcher connects to a wide range of cameras and sources, delivering program output via 24 3G-SDI BNC outputs or a webcam output via USB-C. In addition, the switcher has four multiview outputs with up to 16 routable windows that can display inputs, keyed video, graphics, and stills from the media pool, as well as the program output. Each input connects to a built-in Fairlight audio mixer supporting up to 156 channels of audio. Read more

Features

  • 40 Frame‑Sync Inputs & 24 SDI Outputs
  • 4 M/E Rows with Rich Keying & DVE
  • 156‑Channel Fairlight Mixer
  • Multi‑View Monitoring & Webcam Output
  • Broadcast‑Grade Workflow Integration

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Powerful live event HD switching, supporting up to 40 individual 3G-/HD-SDI inputs built into a 2 RU chassis, is at hand with the Blackmagic Design ATEM 4 M/E Constellation HD Live Production Switcher. Supporting 3G-SDI and HD-SDI signals, the switcher connects to a wide range of cameras and sources, delivering program output via 24 3G-SDI BNC outputs or a webcam output via USB-C. In addition, the switcher has four multiview outputs with up to 16 routable windows that can display inputs, keyed video, graphics, and stills from the media pool, as well as the program output. Each input connects to a built-in Fairlight audio mixer supporting up to 156 channels of audio. Read more

Features

  • 40 Frame‑Sync Inputs & 24 SDI Outputs
  • 4 M/E Rows with Rich Keying & DVE
  • 156‑Channel Fairlight Mixer
  • Multi‑View Monitoring & Webcam Output
  • Broadcast‑Grade Workflow Integration

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About the Blackmagic Design ATEM4CHD ATEM 4 M/E Constellation HD Live Production Switcher (2 RU)

The Blackmagic Design ATEM 4 M/E Constellation HD is a flagship professional live production switcher designed for the most demanding broadcast and large-scale event workflows in HD. It features four independent multi-effects banks, each with four keyers, providing immense capacity for layering complex graphics, live video, and effects. Built on a modular architecture, it allows users to customize its input and output cards to support a massive array of SDI, HDMI, and fiber optic signals, ensuring unparalleled scalability and future-proofing for any major facility or mobile production truck.

This switcher integrates a powerful internal media server for high-resolution stills and clip playback, advanced chroma keyers with superior spill suppression, and a comprehensive Fairlight audio mixer with extensive DSP processing. It supports extensive monitoring via multiple multi-view outputs and integrates seamlessly with broadcast automation through standards like NMOS and Ember+. Control is achieved through dedicated hardware panels or advanced software, offering operators the precision and tactile feedback required for fast-paced live television, sports, and entertainment broadcasts.

As the centerpiece of high-end production environments, the ATEM 4 M/E Constellation HD delivers unmatched creative flexibility and operational reliability. It is the preferred choice for top broadcast networks, large live event producers, and major installation venues that require the ultimate performance, scalability, and control for their HD and HDR live production pipelines.

Key Features

  • 40 Frame‑Sync Inputs & 24 SDI Outputs
  • 4 M/E Rows with Rich Keying & DVE
  • 156‑Channel Fairlight Mixer
  • Multi‑View Monitoring & Webcam Output
  • Broadcast‑Grade Workflow Integration

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Blackmagic Design ATEM4CHD ATEM 4 M/E Constellation HD Live Production Switcher (2 RU) Specs

Video Processing
Video Format
HD 1080p/1080i/720p
Input/Output System
Modular Card Cage
Signal Support
SDI, HDMI, Fiber (via cards)
Mix Effects & Keying
Mix Effect Banks
4
Upstream Keyers
4 per M/E
Downstream Keyers
4
Chroma Keyers
4 with Advanced Spill Suppression
Media & Audio
Media Server
Dual SSD Media Players
Audio Mixer
Fairlight with 48 DSP Mixing Channels
Audio I/O
Modular Analog/Digital Audio Cards
Control & Redundancy
Control
Hardware Panels or Software
Redundant Power Supplies
Yes (Hot-Swappable)
Reference Input
Dual Redundant
Physical
Form Factor
2U Rack Mount
Power
100-240V AC
Dimensions
Standard 19" Rack Width

Key Features

  • 40 Frame‑Sync Inputs & 24 SDI Outputs
  • 4 M/E Rows with Rich Keying & DVE
  • 156‑Channel Fairlight Mixer
  • Multi‑View Monitoring & Webcam Output
  • Broadcast‑Grade Workflow Integration

Already own this item and want to sell it?

Click here to sell your item

FAQs about Blackmagic Design ATEM4CHD ATEM 4 M/E Constellation HD Live Production Switcher (2 RU)

How many video inputs and outputs does the switcher support?

The ATEM 4 M/E Constellation HD features 40 3G-SDI inputs and 24 customizable 3G-SDI auxiliary outputs. All SDI inputs feature independent format and frame rate converters, allowing you to mix and match different HD standards effortlessly.

Does this model support 4K or Ultra HD video resolution?

No, this model is designed specifically for HD video up to 1080p60. It supports standard-definition and high-definition formats via 3G-SDI, but does not support 4K or 12G-SDI standards.

How many multiview monitor outputs are available?

It includes 4 independent 3G-SDI multiview outputs, allowing you to monitor up to 64 total video views across four screens. Each multiview layout is fully customizable and includes tally indicators, audio meters, and custom source labels.

Can I use this switcher for live streaming or video conferencing over USB?

Yes, it features a USB-C connection that functions as a high-quality webcam output. Your computer will detect the switcher as a standard webcam, making it compatible with software like Zoom, Teams, OBS, and Skype.

What dynamic visual effects and keying capabilities does it offer?

The unit comes with 16 ATEM Advanced Chroma Keyers, 4 independent DVE processors, and 2 SuperSource processors. This gives you up to 12 total DVEs for picture-in-picture, multi-box layouts, graphic wipes, and green-screen composites.

Do I need a physical control hardware panel to run this unit?

No, a physical panel is optional. You can fully control the switcher via the included ATEM Software Control app on Mac or Windows, or utilize the front panel's built-in LCD screen and controls.

How does the switcher handle audio processing and external audio inputs?

It features a built-in 156-channel Fairlight audio mixer with 6-band parametric EQ, compression, and limiting. Physical audio connections include balanced 1/4-inch analog inputs/outputs and MADI digital audio expansion ports.

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