ez-Pro VS4 is a 4 channels video source switcher. Video sources can enter through HDMI and/or SDI ports and can be assigned to HD displays and projectors. Builtinscalers on each input can adjust output video resolutions even though input sources have different resolutions. ez-Pro VS4 is born for church worship, educationalactivities, wedding, ceremonies, theater, and live concert.3G-SDI and HDMI Interfaceez-Pro VS4 inputs can be used in combinations of [2 x 3G-SDI & 2 x HDMI] or [1 x 3G-SDI & 3 x HDMI] plus stereo audio. Its outputs are 1 x 3G-SDI and 1 x HDMI. ez-Pro VS4's versatile combination of multi format switcher with scaler supports up to full HD.Internal Scalers for SD, HD, Full-HDEach video input has a built-in scaler that can be set up to 1080p. The incoming video source resolution will be automatically displayed on the LED screen. The output program (PGM) can be up/down scaled to any HD resolution up to 1080p.Audio Input / OutputStereo Balanced Audio input can be mixed with audio sources from 3G-SDI and HDMI video. Audio embedding and de-embedding supported.User-Friendly MultiviewYou can monitor all sources at the same time on a screen through ez-Pro VS4. The multiview allows easy monitoring of all video inputs, audio levels, the preview (PVW) and the program (PGM) screen without confusion. Picture-in-Picture (PIP) can also be repositioned and resized on the multiview screen.