The Blackmagic Design Universal Videohub SDI interface includes 4 SDI inputs and 4 SDI outputs, plus control of 4 recorders. In addition, it features full re-clocking and automatic SD, HD, and 3Gb/s SDI switching. The SDI interface connects all devices in an installation covering long distances of up to approx. 90m. It uses 10-bit video quantization that allows 1024 video levels, and eliminates banding and contouring problems in high quality video.