A controller in video wall is a device that connects multiple HDMI displays to a single HDMI video source. This is the perfect solution for creating a 2x2 video wall. This device supports Ultra HD resolutions. It also acts as a video splitter and connects an HDMI source to multiple HDMI displays. This device also supports 7.1 surround sound audio. In addition, it can be used to control up to eight screens. In addition to its multi-purpose functionality, a good controller should be able to ... Read more