The STARTECH VS421HDDP is a multi-port video switch designed for business and IT environments requiring flexible display connectivity. This switcher box allows users to connect up to four distinct video sources to a single display. It supports three HDMI inputs and one DisplayPort input, providing compatibility with a range of modern devices such as computers, media players, and conferencing equipment. The unit is capable of outputting video at 4K resolution at 60Hz, ensuring high-quality visuals for presentations, digital signage, or workstation setups. It is suitable for conference rooms, control centers, or any professional setting where efficient management of multiple video inputs is necessary.