This 4-screen video wall controller lets you connect your HDMI video source to multiple HDMI displays, with support for Ultra HD resolutions and 7. 1 surround sound audio. You can use the controller as a display splitter to distribute the same HDMI signal to four displays or you can combine your video source across four displays to create a 2x2 video wall. True 4K at 60Hz Not all 2x2 video wall matrix controllers are created equal. While some HDMI 1. 4 video wall controllers can achieve 4K resolutions, they'll only work at a 30Hz refresh rate. This 4K 60Hz HDMI multi-TV video wall processor offers full support for HDMI 2. 0, including true 4K resolution at 60Hz. Widely Compatible The HDMI video wall splitter supports HDCP 2. 2 and is backward compatible with 4K 30Hz and 1080p displays. This ensures that it will work with lower resolution displays such as TVs around your site or in your digital signage application. Easy Installation and Setup For hassle-free setup, the 4K HDMI splitter offers easy plug-and-play installation. Simply connect your source and 4 displays and the multi-screen video wall system will automatically create a video wall at the appropriate resolution. Reliability The ST124HDVW is backed by a 2-year StarTech and free lifetime technical support.