The HDMI 2x2 Video Wall Controlle support 2-way HDMI input and 4 HDMI Output,the main function is to divide a complete HDMI HD image signal into 4 blocks and assign to 4 video display unit(such as Rear projection unit,LCD TV,etc),Complete with 4 HDMI hign-definition video display units to form a large dynamic image screen Remarks 1)The 4K refers to the HDMI inputs signal only.It supports up to 4K 30Hz in and out.But the actual video quality is no more than 1080P@60Hz in spite of the 4K 30Hz in figure. 2)Pls use qualified HDMI cable with all 19 pines wired and shielded to pair the source and display. Most sync issues are caused by poor cables. 3)For a pleasant video experience, pls use Professional Video Walls.
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