The Blackmagic Design ATEM SDI Pro ISO Switcher is designed for multicamera live streaming to the internet up to HD video. This is a four-input live-production switcher with an integrated control panel.
You will also find a USB output allowing for recording the program output as well as recording individual 3G-SDI inputs to an external USB drive (not included).

The Blackmagic Design ATEM SDI Pro ISO Switcher allows for ISO recording and generation of the DaVinci project file. Including upstream and downstream keyers, an advanced chroma keyer, two linear/luma keyers, a DVE transition keyer, a pattern generator, and colour generators. You will also find media player support for fill as well key images. Which supports up to 20 stills in PNG, TGA, BMP, JPEG as well as TIFF formats.