Four sources, two displays, and you need True 4K without a cable spaghetti mess or a signal drop every time someone clicks a button. The ATEN VS482B handles that. It takes four HDMI A/V inputs and feeds two HDMI outputs at True 4K resolution, fully compliant with HDMI 2.0. Audio Return Channel is built in, so you skip the extra audio cable entirely. Switch between sources with the front-panel buttons, the included IR remote, or RS-232 commands if you're wiring it into a room control system. EDID Expert keeps every display talking to every source without the "no signal" panic at the start of a meeting. Built for auditoriums, home theatres, meeting rooms, trade shows, and anywhere you've got more sources than screens. Add to cart when you're ready to sort it out