Overview Blackmagic Design ATEM 1 M/E Advanced Panel 20 The ATEM 1 M/E Advanced Panel 20 is a single M/E, 20 input button switching panel that includes the features and flexibility needed for switching big and small productions in a highly portable and compact design. It has 2 independent system control LCDs plus it can control up to 4 M/Es in larger switchers. All input buttons include LCDs for custom labeling and there is an independent select bus. Dual power inputs provide redundancy and the built-in 4 port Ethernet switch means no additional network equipment is needed so it will fit even the most challenging live production spaces! For the ultimate in professional control you can add an optional ATEM Advanced Panel! Although you can use ATEM Constellation with the software control panel, using an ATEM Advanced Panel is so much faster! ATEM Advanced Panels open up the power of your ATEM Constellation because they give you an enormous amount of control, allowing you to setup more complex effects. It's also a nicer way to work because you have physical broadcast quality buttons, knobs and a t‐bar fader so you can access all features in the switcher, all at the same time!