Video Wall Controller 3×3 Processor 4K 3840×2160@30Hz HDMI 1.4 with 1 HDMI Input and 9 Outputs 15 Display Modes Including 1×1,1×2,1×3, 1×4, 2×1, 2×2, 2×3, 2×4, 3×1, 3×2, 3×3, 4×1, 4×2