Roland VR-50HD - Multi-Format AV Mixer Roland VR-50HD All-in-One HD Multi-Format AV Mixer with USB 3.0 for Web Streaming & Recording - AC Adapter - Power Cord - Owner's Manual - Roland 1 Year Limited Warranty 12 input, 4-Channel Video plus still channel Multi-Format Switcher Supports 3G/HD/SD SDI, HDMI, RGB/Component and Composite Video Inputs Up to 1080p (3G SDI) Embedding of audio with delay settings 12-Channel Digital Audio Mixer with XLR, TRS and RCA jacks along with audio from SDI and HDMI inputs