An HDMI Splitter takes one HDMI input signal and splits it into two or more HDMI outputs. This is helpful when the same audio and video content needs to be shown on more than one monitor at the same time. In a classroom, it can allow a teacher to display the same lecture content on several classroom monitors at once. In some digital signage and control room functions, it helps to show the same visual information on many monitors simultaneously for better and easy visibility and monitoring