Total Video Inputs
40
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Shipping Estimate
USA
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
ATEM 4 M/E Constellation HDThe massive 4 M E model doubles the features of the 2 M E model with 40 x 3G SDI inputs, 24 x 3G SDI outputs, 4 DVEs, 16 ATEM Advanced Keyers, 4 multiviews and 2 SuperSource for 12 x DVEs in total. Connections Total Video Inputs 40 Total Video Outputs 24 SDI Rates 1. 5G, 3G Total Audio Inputs 2 x balanced 1 4 inch Jack, 1 x 32 stereo channel BNC MADI in. 1 x 5 pin XLR Talkback. Total Audio Outputs 2 x balanced 1 4 inch Jack, 2 x 32 stereo channel BNC
The massive 4 M/E model doubles the features of the 2 M/E model with 40 x 3G-SDI inputs, 24 x 3G-SDI outputs, 4 DVEs, 16 ATEM Advanced Keyers, 4 multiviews and 2 SuperSource for 12 x DVEs in total.
Connections
Total Video Outputs
24
SDI Rates
1.5G, 3G
Total Audio Inputs
2 x balanced 1/4 inch Jack,
1 x 32 stereo channel BNC MADI in.
1 x 5 pin XLR Talkback.
Total Audio Outputs
2 x balanced 1/4 inch Jack,
2 x 32 stereo channel BNC MADI out.
1 x 5 pin XLR Talkback.
SDI Audio Inputs
8 Ch embedded audio on all SDI inputs.
SDI Audio Outputs
16 Ch embedded audio on all SDI outputs.
Timecode Connections
None
Reference Input
Tri-Sync or Black Burst.
Video Input Re-Sync
On all 40 inputs.
Frame Rate and Format Converters
On all 40 inputs.
SDI Aux Outputs
Any of the 24 SDI outputs.
SDI Preview Outputs
Any of the 24 SDI outputs.
SDI Program Outputs
Any of the 24 SDI outputs.
Down Converted SDI Program Output
None
Webcam Output
1 x USB-C supporting 720p or 1080p at PGM frame rate.
Total Multi Views
4 x 3G-SDI
Remote
RJ12 supports RS-422
Control Panel Connection
Ethernet. Direct connection between panel and chassis, or via network.
Internal Timecode Generator
Yes
Talkback
RJ45 for 3rd party talkback systems.
Tally Output
Added via ethernet connection to Blackmagic Design GPI and Tally Interface product. (Not included).
Ethernet
Supports 10/100/1000 BASE-T.
Computer Interface
1 x USB-C supports USB 2.0
Standards
SD Video Standards
None
HD Video Standards
720p50, 720p59.94, 720p60
1080i50, 1080i59.94, 1080i60
1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60
SDI Compliance
SMPTE 292M, SMPTE 296M, SMPTE 424M, SMPTE 425M level A and B.
Video Sampling
4:2:2
Color Precision
10-bit.
Color Space
REC 709
SDI Auto Switching
Automatically detects between 1.5G-SDI and level A or level B 3G-SDI.
Product Specifics
Upstream Keyers
16
Downstream Keyers
4
Advanced Chroma Keyers
16
SuperSource
2
Talkback Support
Yes
Mix Minus Support
Yes
Linear/Luma Keyers
21
Transition Keyer (Stinger/DVE)
4 Stinger, 4 DVE.
Total Number of Layers
28
Pattern Generators
21
Color Generators
2
Control Panel
Front fascia emergency switching, software or optional hardware panel.
Routable Windows
64
Tally
Red for program and green for preview indication.
Windows Source Labels
Yes
Multi View Monitoring
Multi View Monitoring
4 x multi views each configurable to 16, 13, 10, 7 or 4 up views. Includes monitoring of Program, Preview, Inputs, Media Players, M/Es, DSKs, SuperSource, Clean Feed with optional labels and audio meters.
Multi View Video Standard
HD
Display Minimum Resolution
1366 x 768
Media Player
Media Players
4
Channels
Fill and key for each media player.
Media Pool Still Image Capacity
60
Media Pool Clip Capacity
4 x up to 1080p60.
Media Player Clip Length in 720 HD
1200 frames.
Media Player Clip Length in 1080 HD
600 frames.
Media Pool Still Image Format
PNG, TGA, BMP, GIF, JPEG and TIFF.
Media Pool Video File Format
TGA Sequence.
Media Pool Audio File Format
WAV, MP3 and AIFF.
Display
Front panel
Built in 5 inch 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
Processing Delay
< 10 lines.
Audio Mixer
156 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.
Down Conversion
None
Software
Control Panel Included
ATEM Software Control Panel included free for Mac 11.11 Big Sur, Mac 12 Monterey or later and Windows 10 or 11.
Software Updates
Using USB or Ethernet connection directly connected to Mac or Windows computers. Includes ATEM Setup Utility.
Configuration
Set via ATEM Software Control Panel, excluding ATEM chassis IP address which is set via the ATEM Setup Utility connected via USB to chassis.
Power Requirements
Power Supply
2 x Internal 100 - 240 AC.
Power Usage
147W estimated.
Physical Specifications
Physical Installation
Physical Installation
2 Rack Unit Size.
Environmental Specifications
Operating Temperature
0° to 40° C (32° to 104° F)
Storage Temperature
-20° to 60° C (-4° to 140° F)
Relative Humidity
0% to 90% non-condensing
What's Included
ATEM 4 M/E Constellation HD
Welcome wallet with QR code for software download
Warranty
1 Year Limited Manufacturer’s Warranty.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Perfect Pillow
Size: Queen (Pack of 1), Color: White
These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow.
I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine.
Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow.
Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money.
UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Soft comfortable very good pillow
Size: King (Pack of 1), Color: White
I really love my new pillow it's great and comfortable. Yes, it has a little smell, but if you wash the pillowcase and put the pillow on the window for a day you won't notice anything anymore.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Best place for head
Size: Queen (Pack of 1), Color: White
Do you love not getting sleep and sweating all over your pillow at night when you are asleep? If so then don't buy this pillow! If you want a good nights sleep and cool pillow like me this is the one. Ive always been ehh towards spending so much on a pillow but its 100% worth it, I sleep so much better and it forms to my head and keeps me cool at night. Great support even for my big head and comes with a bag of extra stuffing if you want to have a little more firmer pillow. Highly recommend
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Reviewed in the United States on April 4, 2026
★★★★★ 3
Oversized
Size: Queen (Pack of 2), Color: White
I have chronic neck pain. I am forever buying new pillows. Sometimes I think I found the perfect pillow but then three months later they’re losing their loft. I thought I would give these pillows to try since the stuffing is removable. Now these pillows are really oversized. To the point where I thought that they had sent me king-size pillows but I double checked the packaging and they were Queen. I ended up having to buy king-size pillowcases for them because they just barely fit in the queen size and the pillowcases would always end up pulling back from the edge. So that’s a negative one star there. Now I’ve been sleeping on these pillows for a while and they have held up well. I did end up removing some of the stuffing because it was just too much. I’m a side sleeper and when I use this pillow, it does a good job of keeping my neck in alignment. However, the pillow tends to migrate up as I sleep. Or I tend to slip down off the pillow, either or. So that’s why I’ve removed a second star. Maybe if I removed more stuffing that wouldn’t happen, but then I feel like the loft would be too little. I will say that these provide great support when sitting up in bed reading or watching TV. So would I buy them again? Probably not. Am I going to keep using them? Yes
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Reviewed in the United States on December 23, 2025