Blackmagic Videohub 20x20 12G is an advanced zero latency video router that supports any combination of SD, HD and Ultra HD on the router at the same time. It has 20 12G-SDI inputs and 20 12G-SDI outputs plus reference connections in a one rack unit size. The front panel LCD lets you see video before routing and clearly displays routing labels and video standards. Routing can be performed by direct button selection and using the large spin knob control that has an electronic clutch. It also features SDI re-clocking, external Ethernet control and supports all SDI video standards up to 2160p60.