A 1080p 1x4 HDMI splitter is a device designed to take one high-definition (HD) audio/video signal from a single source and duplicate it to four separate displays simultaneously. It is a "one input, four output" (1x4) device that mirrors the same content on all connected screens.
Key Features & Specifications
Function: It acts as a signal duplicator or amplifier, not a switch. All four output screens will show the exact same image and sound at the same time. It does not support extended desktop mode.