Keep shared displays ready for the next presenter. The StarTech VS421HDDP routes three HDMI sources and one DisplayPort source to a single HDMI display, reducing desk clutter and eliminating the friction of manual reconnection. It is built for environments where source changes need to happen quickly and predictably, from conference rooms to demo stations and collaborative workspaces. By supporting both HDMI and DisplayPort inputs, this switch fits mixed-device deployments without forcing adapters at every desk. That matters when teams bring different laptops, media players, or workstations into the same room. The result is a cleaner signal path, fewer compatibility headaches, and a more controlled AV setup. For organizations standardizing shared presentation infrastructure, this model offers a practical balance of flexibility and simplicity. It helps preserve display availability, keeps the user experience straightforward, and supports a more polished room design than lower-cost switches that are limited to a single input type or fewer source options.