With many video facilities just getting used to working with HD resolution, is it time to jump into the world of 4K video? You bet it is, and Gefen’s GTB-HD4K2K-848-BLK Toolbox 4K Ultra HD 8×8 Matrix for HDMI is a good place to start. This matrix switcher can not only connect eight independent video streams with up to eight different displays, but it won’t take up any precious rack space.