The Gefen EXT-VGAAUD-2-HDMIS is a professional-grade video and audio scaler designed to convert analog VGA (RGBHV) signals and stereo audio into a digital HDMI output. This device addresses the common need in commercial, educational, and legacy AV systems to integrate older computers and sources with modern displays, projectors, and capture equipment that only feature HDMI inputs. It actively converts the incoming analog video signal, digitizing and scaling it up to a pristine 1080p (1920x1080) resolution output, ensuring compatibility and optimal image quality on contemporary high-definition screens. The integrated processing also handles audio, embedding the analog stereo audio signal into the HDMI output stream for a complete, synchronized audio/video solution.

The scaler employs advanced signal processing to handle a wide range of input resolutions, automatically detecting the VGA timing and locking onto the signal for a stable picture. It then scales the image to the selected output resolution with high-quality interpolation, minimizing artifacts like jagged edges or blurring. Key user controls, often accessible via buttons on the unit or an included remote, allow for adjustments to output resolution, image positioning, and color settings, enabling fine-tuning for the specific display. The device is typically powered via an external power adapter, ensuring clean, stable operation without drawing power from the source computer.

Designed for reliability in permanent installations and frequent use, the EXT-VGAAUD-2-HDMIS is an essential tool for system integrators upgrading rooms with legacy equipment. It solves interoperability challenges in conference rooms, lecture halls, and control centers, extending the useful life of existing VGA-based sources while migrating the signal path to digital HDMI. By providing a high-quality, adjustable conversion process, it ensures that valuable analog sources remain viable components in a modern digital AV ecosystem.