Atlona AT-HD-SC-500Three-Input HD Video Scaler

The AT-HD-SC-500 is a three-input scaler with a built-in 3x1 switcher, built for the lectern and the huddle room where a laptop, a resident PC, and a legacy VGA source all have to land on one display. Two HDMI inputs and one VGA input (with its own 3.5 mm analog audio input for embedding) feed a single HDMI output, and everything is scaled to a fixed output resolution so the projector never drops out or resyncs when a presenter swaps sources. Output resolutions run from 800x600 up to 1920x1200, plus a NATIVE setting that reads the display EDID.

Auto input selection picks up whichever source went live, and the display itself can be powered on and off automatically over CEC, IP, or RS-232 so the room comes up with one button. Setup and day-to-day maintenance happen through Atlona's web GUI, the front-panel OSD, or the AMS management system, including HDCP status, per-input preferred resolution, and picture controls for brightness, contrast, saturation, hue, and sharpness. It draws 10.4 W from the included 5 V supply and mounts to a wall or under a table with the supplied ears.