StarTech.com 4-Port HDMI Automatic Video Switch w/ Aluminum Housing and MHL Support - 4x1 HDMI Switcher Box with Support for 4K at 30Hz Switch between four HDMI sources on a single HDMI display with support for MHL and video resolutions up to 4K HDMI switch Compatible with HDMI enabled devices such as Blu-ray players & computer systems, and HDMI displays & projectors Ensure your switch stays where you put it. Unlike plastic splitters that get dragged out of place by attached HDMI cables, the VS421HD4K features a solid aluminum housing that will stay put Solid aluminum housing ensures fixed positioning