【Video Wall Controller 2X2 】This 4K 2X2 video wall controller distributes one HDMI/VGA input (PC, laptop, computer, set-top box, DVD player, PS3/4, etc.) to 4 HDMI outputs (LCD TV, rear projection unit, monitor, etc.) simultaneously, allowing you to create gorgeous large video walls and digital signage displays, allows you to Enjoy high definition visuals. | 【4K@30Hz UHD Resolution】The 2x2 HDMI wall controller supports 4K@30Hz or 1080P@60Hz resolution output. The premise of high-definition is to use high-quality HDMI cables, if the picture is blurred, please set the input and output resolution to 1080P. Also, this HDMI video image processor equipped with a separate stereo audio port to connect speakers. | 【180 degree Rotation& Edge masking】This splicing display controller support each screen 180 degree Rotation, when 2x2 mode, Invert the up TVS and use the rotation function which can adjust the screens in an orientation with the thinnest edges, reduce the thick middle border.Edge masking reduce the gap between each screen. | 【Support 8 Display Modes】 This hdmi video wall processor support 4TVS or less TVS mode such as 2x2, 1x1, 1x2, 1x3, 1x4, 4x1, 3x1, 2x1, to meet different splicing needs and splicing scenarios. Support TV flip 180° (2*2 mode only), and flip the top row of TVs to make the splicing gap smaller and more beautiful. | 【2 Ways Control Methods 】This LED TV Wall Controller support Panel buttons and IR remote control, each function has very clear button, plug and play, no need software. | 【Best Service】For this Multi-Screen Splicing Display Controller, we provide the 24 hours email support, 30-day free return and exchange service, and 2 years of after-sales warranty. Please feel free to contact us if you have any questions.