HAICHENTEX

HAICHENTEX HDMI Multiviewer Switch 4x1 Seamless Switcher Quad MultiViewer HDMI Switcher 4 in 1 Out Supports 4K HD1080p 60HzUpgrade 9 Display Modes with IR Remote for Security Camera and Gaming Console

HAICHENTEX HDMl Video Wall Controller 2X2 with RS232 4 TV Screens into 1 Wall Display HDMI 4K 2X2 TV Wall Processor 180 Rotate Audio Extractor 8 Splicing Modes1x1 1x2 1x3 1x4 2x1 3x1 4x1