Sound Formats: The 2x2 HD Multimedia Interface Video Wall Controller supports PCM 2.0 sound format, ensuring clear audio output. Please note that it does not support Dolby Digital or DTS formats. For sound output, external speakers or soundbars are required, as sound does not pass through the monitor or external sound systems. Supported Resolutions: This video wall processor is compatible with HD Multimedia Interface 1.4 and HDCP 1.4, offering impressive input video resolutions of 1920x1080P at 25, 30, 50, and 60Hz, as well as 3840x2160P at 25 and 30Hz. The output resolution is 1920x1080P at 25, 30, 50, and 60Hz, ensuring high-quality visuals for your display needs. 180 Degree Screen Rotation: Enhance your viewing experience with the 180-degree screen rotation feature. This function allows you to flip the image of HD Multimedia Interface outputs 1 and 2, adjusting the screen to the direction of the thinnest edge and minimizing the middle thick border for a seamless display. Edge Mask Function: The video processor includes an edge mask function that corrects and aligns borders and image edges, making multiple screens more comfortable to view. It supports 8 display modes, including 2x2, 1x1, 1x2, 1x3, 1x4, 2x1, 3x1, and 4x1, providing diverse display options to suit your specific needs. Easy to Operate: Designed for user convenience, this HD Multimedia Interface video splicer is plug and play, requiring no driver installation. It supports 1 HD Multimedia Interface or DVI input and 4 HD Multimedia Interface output signals, allowing you to connect up to four LCD TVs or other display devices such as projectors, DLP, and plasma units effortlessly. This 2x2 HD Multimedia Interface Video Wall Controller is crafted from durable aluminum alloy, ensuring longevity and reliability. With its wide range of features and easy operation, it is the perfect solution for creating dynamic and engaging video wall displays in both professional and personal settings.