Overview
The Blackmagic Design ATEM 4 M/E Constellation IP Switcher is a professional 2 RU live production switcher designed for broadcasters, studios, venues, and live event teams building around SMPTE 2110 IP workflows. It provides 32 native IP video inputs and 28 outputs, including multiview, over redundant 100G fiber Ethernet connections, making it a powerful solution for large multicamera productions up to UHD 4K60. Combining ATEM’s familiar program/preview workflow with extensive internal processing and broadcast-focused redundancy, it is built to sit at the center of demanding modern production systems.
This model is particularly well suited to facilities that need high channel counts, flexible routing, strong on-air graphics capability, and dependable operation under pressure. With four M/E rows, 16 ATEM Advanced Keyers, two SuperSource processors, and a total of 12 DVEs, it has the processing depth for layered live switching, picture-in-picture compositions, branded programs, virtual set elements, and polished transition work. A built-in LCD, front-panel speaker and headphone output, and USB-C connectivity add convenient local access for monitoring, configuration, and software-based control.
Core Features
- The switcher supports 32 native SMPTE 2110 IP inputs and 28 outputs, including multiview, for large multicamera live production systems.
- Each input has its own frame rate and format converter, allowing mixed incoming video standards to be automatically aligned to the switcher format.
- Redundant 100G fiber Ethernet ports support SMPTE 2022-7 seamless protection switching for increased reliability in broadcast environments.
- Four M/E rows, 16 ATEM Advanced Keyers, two SuperSource processors, and 12 total DVEs provide strong creative flexibility for live compositing and effects.
- The built-in multiview system can display up to 64 views across four outputs with customizable layouts, labels, tally, and VU meters.
- A rear USB-C webcam output allows the switcher to work with streaming and conferencing software on a connected computer.
- Redundant power, redundant network connections, and a quiet four-fan cooling design help support continuous professional operation.
Built for IP Broadcast Infrastructure
The ATEM 4 M/E Constellation IP is designed as a native SMPTE ST-2110 switcher rather than a conventional baseband unit adapted for network use. Its 100G fiber Ethernet architecture allows large numbers of video channels to be mapped across redundant network connections, giving engineers and production teams a more scalable way to build modern broadcast and live event systems. This makes it especially attractive for facilities transitioning toward IP routing, centralized control, and higher-density signal transport.
Powerful Layering and Keying Tools
For productions that need more than straightforward source switching, the switcher offers substantial internal compositing power. Four full M/E rows provide room for complex show structures, while 16 ATEM Advanced Keyers support layered graphics, lower thirds, chroma key work, and sophisticated on-air branding. The built-in DVE tools handle position, resize, and scale effects for professional picture-in-picture layouts, while the two SuperSource processors expand that capability even further for multi-box compositions and advanced visual presentation.
Flexible Monitoring and Graphics Workflow
The integrated multiview system is built for busy control-room and flypack environments, allowing up to 64 views across four outputs with selectable layouts, labels, tally borders, and VU meters. That monitoring flexibility helps operators and engineers keep track of large productions without relying on excessive external hardware. The switcher also includes built-in media players and graphics storage for stills and animations, making it easier to load and deploy broadcast graphics directly from within the system.
Reliable for Continuous Live Operation
Beyond its creative tools, the ATEM 4 M/E Constellation IP is built for the practical demands of live production. Dedicated frame rate and format conversion on every input reduces compatibility issues when sources do not match the house standard, while redundant networking, dual IEC power inputs, and quiet front-to-back cooling with four fans help protect uptime during critical broadcasts and events. The switcher can be operated using the included ATEM Software Control application or paired with optional hardware panels for a more traditional broadcast control experience.
Mix Effects
| Available M/E Layers | 4 M/E |
| Effect Types | 20x Luma Key, 4x DVE, 4x Transition, 4x Stinger |
| Graphics Memory | 64 Images |
| Downstream Keys | 4x DVE |
| Generators | 21x Pattern |
| Audio Mixing | 68-Channel Mixing |
Processing
| Switching Type | Software |
| Processing Resolution | UHD 4K at 60 |
| Color Processing | 10-Bit 4:2:2 |
Input
| Number of Video Input Sources | 32 |
| Video Inputs | 8x QSFP28 Female |
| Input Video Format | Fiber (10-Bit 4:2:2) |
| Supported Input Formats | UHD 4K at 23.98/24/25/29.97/30/50/59.94/60 fps; 1080p at 23.98/24/25/29.97/30/50/59.94/60 fps; 1080i at 50/59.94/60 fps; 720p at 50/59.94/60 fps |
Output
| Video Output Channels | 28 |
| Video Outputs | 8x QSFP28 Female |
| Output Video Format | Fiber (10-Bit 4:2:2) |
| Supported Output Formats | UHD 4K at 23.98/24/25/29.97/30/50/59.94/60 fps; 1080p at 23.98/24/25/29.97/30/50/59.94/60 fps; 1080i at 50/59.94/60 fps; 720p at 50/59.94/60 fps |
| Multiview Output | 64-Way Multiview |
Connectivity
| Other I/O | 2x RJ45 Control Input/Output, 2x RJ45 Reference Input/Output, 1x RJ45 LAN Input/Output |
| Video Standard Compliance | SMPTE ST-2110 |
Hardware
| OS Compatibility | macOS 15 or Later / Windows 11 or Later |
| Processor | Not Specified by Manufacturer |
| Wireless | No |
Power
| Power I/O | 2x IEC C14 Input |
General
| Operating Conditions | 0 to 40°C up to 90% Humidity |
| Storage Conditions | -20 to 60°C up to 90% Humidity |
| Rack Form Factor | 2 RU |
Physical
| Dimensions | 48.3 x 22 x 8.84 cm |
What's Included
- Blackmagic Design ATEM 4 M/E Constellation IP Switcher
- Barcode: 89981
- UPC Barcode: 9338716010527
- Supplier Code: SWATEMSCN2/3ME4/IP