The Blackmagic Design DeckLink 4K Extreme 12G is an 8-lane PCIe Gen2 digital cinema capture and playback card with two multi-rate 12G-SDI inputs and outputs that accept resolutions from SD up to DCI 4K (4096 x 2160) at 60 fps. The card supports 10-bit YUV and 8-, 10-, and 12-bit RGB color, as well as up/down/cross conversions and 3D stereoscopic output at full bandwidth 4:4:4:4 RGB. The DeckLink 4K Extreme 12G features a mezzanine card design that has 4K HDMI input and output connectors on a second daughter card, along with connections for adding two optional optical fiber modules for Dual Link optical fiber SDI input and output. The card also supports AES/EBU balanced XLR and unbalanced RCA inputs/outputs, analog video I/O, reference input, and RS-422 control via an included breakout cable.