How does an HDMI matrix switch work,please see as below

We'll get into more details, but the short version is that an HDMI matrix switch takes multiple sources, like Xboxes and media streamers, and lets you choose (switch) between them, sending one cable to your TV. As you've probably figured out already, a splitter takes one signal, and splits it across multiple HDMI cables

This is a new fixed 4K2K HDMI matrix switcher with 4 HDMI input ports and 4 HDMI output ports, the resolution can up to 4K30Hz and all ports are HDCP compliant. With the friendly user control methods: IR remote control, 2-Press push buttons with background blue light, WEB GUI, APP and the smart EDID management.

Who use it

This HDMI matrix switcher can work with the Blu-Ray Players, Set-Top boxes, computers, and game consoles etc HDMI input sources to route to the HDMI displays, it has been widely used in different audio visual applications.