Four machines, one screen, and you keep unplugging the same cable. The ATEN VS-481B ends that. Four HDMI inputs route to a single display. Switch via front-panel buttons, IR remote, or RS-232 if you're wiring it into a larger AV setup. Front-panel LEDs show which source is live at a glance. Supports Ultra HD 4K x 2K resolution. Auto switching grabs the active port for you. Instant switching keeps the video cut smooth between ports. The built-in bi-directional RS-232 port lets you drive it from a PC, a high-end controller, or home automation software
