This 4 Port HDMI USB KVM Switch with Quad Multi-Viewer allow you to control 4 computers/ PC with 1 set of mouse and keyboard. Support seamless switching between 4 signal sources; with Multi-Viewer function supports 4 HDMI input sources to a single HD TV or Display with quick switching via IR remote/ switch button Easy to Use - Support Button Switch; IR Remote Control; and Hotkey Switch for KVM Supports 6 display mode - multiple ways to display your source, allowing you to view single source, 2 sources or all 4 sources at the same time on the screen Wide Compatibility 1. Support 4k@30HZ, 1080p, 720p or 480p; 2. Compatible with multiple computer systems such as Windows, Mac, Linux, Vista, etc. 3. Work for video game systems, media players, computers, TV, and more HDMI-capable devices, such as Fire TV, Apple TV 4K, Macbook, DVD Player, Blu-Ray players, PS5/4, Xbox X, Roku, PC Package Include: 1 X HDMI KVM Switch 1 X Power Adapter 1 X User Manual 4 X USB Cable