Roland VP-42H Video Processor 4 x 1 HDMI. Everything you need, on a single screen The Roland VP-42H Video Processor layers and arranges multiple video sources to a single screen with dynamic transitions for effective and engaging presentations, digital signage and meeting applications. The Ver.1.2 update simplifies the VP-42H experience with WebRCS User Mode, streamlines workflow using shortcuts, adds Chroma Key video effect, and prevents tampering with Panel Lock. Combine up to four HDMI video sources on to a single output Simple set-up and remote switching with browser-based network control Connect and switch multiple resolutions simultaneously Audio management and connection to external audio devices Motion Scene Switching for fluid transitions between complex screen sets Keyer function for overlays and advanced compositions