The Baseus HDMI Switcher 4K (CAHUB-BC0G) is a bidirectional 2-in-1 HD multi hub: use it as a splitter to send one source to two displays, or as a switch to pick between two devices on one screen. One-touch button control, up to 4K resolution, and a compact aluminium alloy build make it plug-and-play with no external power needed.