Blackmagic MultiView 4 is a multi viewer that lets you monitor 4 completely independent SDI video sources on a single display! Featuring 4 6G-SDI inputs with full re-synchronization, MultiView 4 lets you monitor any combination of SD, HD and Ultra HD video formats and frame rates all at the same time. Blackmagic MultiView 4 can output to both 1080 HD and 2160p Ultra HD displays so you connect it to either regular HD or Ultra HD televisions. If you connect an Ultra HD television or monitor, you can take advantage of the extra resolution of Ultra HD and see full resolution 1920 x 1080 HD in each view for incredible sharpness! You can even turn on audio meter overlays, custom labels and more in each view!