This massive model is big enough to perfectly match the features on the ATEM Constellation switcher! It features 4 M/E rows with 40 input buttons per row and 4 independent system control LCDs for each row. This massive panel includes 24 LCD's for custom labeling of every button on every row! 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! The ATEM Advanced Panels opens up the power of your ATEM Constellation because it gives 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. Imagine using the 4 M/E model to access all M/Es simultaneously, with an input button for every single SDI source on the ATEM Constellation switcher!