The 2x2 video wall controllers come with Quad-screen processing. It supports 4-way HDMI output signal. You can connect it to 4 LCD TV or other display, for example, projectors, DLP, and plasma TV units. The video wall comes with HDMI and USB signal interface with audio decoding, composite video, and VGA signal plus the corresponding audio binding interface. https://bit.ly/2wXiGI0
