Kaleido-MX 4K: Ultra High-Definition Multiviewer Datasheet (DS-PUB-2-0498B-EN) File size: 1.8 MB, posted Jul 27 2021 The Kaleido-MX 4K from Grass Valley, a Belden brand, is the latest addition to the Kaleido family of multiviewers, and it offers stunningly beautiful, seamless 4K pictures (without visible quadrants) for monitoring on large 4K screens. Kaleido-MX is an ultra high-definition multiviewer that can natively drive a 4K display for the most demanding monitoring applications. Available in four configurations for up to 64 SD/HD or 3G inputs, the Kaleido-MX 4K is perfect for high-end in-studio TV productions, outside broadcast trucks, as well as playout facilities.