【4K Video Wall Display】Transforms a single 4K HDMI/DVI/USB-C input into a seamless 2X2 video wall across four displays for immersive large-screen viewing. 【Multiple Input Support】Compatible with HDMI 1.4, DVI, and USB-C inputs with HDCP 1.4 support for versatile connectivity options. 【Plug & Play Setup】Simple 2X2 splicing configuration requires no complex setup - just connect and display for instant video wall creation. 【Advanced Control Options】Features RS232 serial control, IR remote control, and manual panel buttons for flexible operation and integration. 【High-Quality Audio Output】Includes SPDIF optical fiber output supporting PCM audio and 5.1CH Dolby Digital for complete multimedia experience. 【Professional Display Features】Supports bezel fusion adjustment, 90°/180°/270° rotation, and proportional scaling for optimal visual presentation. Specifications: Input Resolution: 1920x1080P 25/30/50/60Hz, 3840x2160P 30Hz Output Resolution: 4K/30Hz, 1080P/60Hz Input Format: RGB/YUV 24-bit Output Format: RGB 4:4:4 24-bit Control Methods: RS232, IR Remote, Manual Buttons Audio Support: PCM Audio via SPDIF, 5.1CH Dolby Digital Power Supply: DC 5V/2A Dimensions: 172mm x 68mm x 21mm Material: Aluminum Alloy with Brushed Finish