Keep a single display aligned to the right source with a compact 4 x 1 HDMI switch built for professional AV environments. The Black Box VSW-HDMI4X1-4K accepts four HDMI inputs and routes them to one HDMI output, supporting UHD resolution for modern presentation and monitoring workflows. Smart auto switching reduces manual intervention by moving to the active source when it appears, which is useful in rooms where users connect and disconnect laptops throughout the day. EDID handling adds another layer of control: the unit can read and copy EDID automatically from the display, or you can copy audio/video EDID information manually when source compatibility needs to be managed more precisely. With a rack-mountable form factor and a three-year limited warranty, this switch fits installations where uptime, consistency, and clean signal handoff matter more than consumer-grade convenience. It is a practical choice for conference rooms, training spaces, and AV racks that need reliable source selection without overbuying on features you will not use.