For extreme power, the Blackmagic Design HyperDeck Studio 4K Pro has all the features of the HD models, combined with incredible processing for working in Ultra HD. This model's SDI has been upgraded to full 12G-SDI with a loop 12G-SDI output. The two SDI outputs are both 12G-SDI so you can play ProRes 4444 files for true Ultra HD fill and key out. The HDMI connections and the ProRes and DNx file formats all switch between SD, HD and Ultra HD television standards. Like the other models, H.264 is included for SD and HD, but then switches to H.265 when recording in Ultra HD. Even the networking has been upgraded to 10G Ethernet for incredible speed! You also get 2 redundant AC power supplies!