The switching control allows any of the input AHD signals to be displayed on the display through the HD multimedia interface output. Four AHD HD digital signals can be displayed on the same screen. This 4x1 multi switcher has a resolution of up to 1920x1080P, presenting detailed pictures with vibrant image quality. The output resolution supports 1080P at 60Hz. Sound output supports PCM2, 5.1 for Dolby 5.1 and DTS5.1. The 4 in 1 out multiviewer switcher features infrared remote control and panel button control, supporting power failure memory function for easy operation. The AHD 4 in 1 out multi switcher enables high-speed lossless transmission with no delay. It offers two display modes: single screen or all four screens simultaneously. Widely used in shopping malls, neighborhoods, and vehicle video surveillance areas. The aluminum alloy casing provides durability, corrosion resistance, and efficient thermal conductivity.