HDMI 4x1 Quad Multiviewer: Features four channels of HD screen splitting and seamless switching output. Flexible switching control with push-button and IR control. Easy to install. Seamless Switching: The switch supports seamless switching of 4 HDMI signals. It can display 4 HD digital video signals on the same screen and has multiple video splitting methods to seamlessly switch 4 HD input signals at the same time. (Note: Use the [Audio Switch] button on the product to switch audio at the same time). 4K FHD High Resolution: HDMI output resolution up to 1080P/60Hz and 4K/30Hz, supports resolution up to 4K60Hz (YUV). (Note: YUV 4:2:0 format only supports 4K@60Hz. RGB format only supports 4K@30Hz (3840×2160@30Hz). IR remote control and 5 display modes: You can switch the input signal via panel buttons or IR remote control console. This switch provides multiple ways to view your source devices, and it can display 1 or 4 input source devices at the same time.