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

We'll get into more details, but the short version is that an HD 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 HD cables

This is a new fixed 4K2K HD matrix switcher with 4 HD input ports and 4 HD 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 HD matrix switcher can work with the Blu-Ray Players, Set-Top boxes, computers, and game consoles etc HD input sources to route to the HD displays, it has been widely used in different audio visual applications.