View Sonic's industry leading projector, the Pro 8520HD, is a Full HD 1080p model that delivers superior & stunning HD image quality onto 30~300" screen. With 5, 000 lumens, the Pro 8520HD ensures every pixel will stay crystal clear on the large venue even with the wide range of brightness settings. The Pro 8520HD supports a Crestron Room View network management system that efficiently controls & manages all the projectors in the system from a central terminal. Through a RJ45 connection, the Pro 8520HD can simultaneously display inputs from 4 different computer screens, provided all devices are connected to the same intranet. This facilitates the development of synergy among the participants. For a PC less presentation, it can also be operated by just plugging in an USB (Universal Serial Bus) flash to enjoy the content immediately. With 1.5x optical zoom, it enlarges the screen image & fit in anywhere. The versatile interfaces, such as HDMI, RGB, S-video, component inputs & integrated speakers & microphone, allow the Pro 8520HD to be used as an audiovisual stereo, making it the optimal solution for projection in large lecture rooms, conference rooms, & public demo rooms.