The VS-211HDxl is a high-performance automatic switcher for 3G HD-SDI signals. It switches between two 3G HD-SDI inputs and automatically switches to the secondary input when the primary input is lost. It has features like multi-standard operation for SDI, HD-SDI, and 3G HD-SDI, automatic standby switching, selectable primary input, input status indicators, and can be rack mounted with an optional adapter.