Blackmagic Design Decklink Quad 3G-SDI Mezzanine Card for Decklink 4K Extreme 12G. The Decklink Quad 3G-SDI Mezzanine Card for Decklink 4K Extreme 12G from Blackmagic Design is a replacement for the original daughter card that came with your Decklink 4K Extreme 12G PCIe board. The daughter card features four BNC connectors that support 3G-SDI.

The four connectors are grouped into two input and two output connectors that work in conjunction with the four 12G-SDI connectors on the main board. Replacing your original daughter (mezzanine) card with this one expands your cards input and output capabilities.Replacing the original HDMI/optical fiber output daughter card with the Quad 3G-SDI board allows you to input and output a Quad 3G-SDI signal, which the main board cannot do by itself.

• For Decklink 4K Extreme 12G Main Board
• 2 x 3G-SDI Inputs, 2 x 3G-SDI Output
• Replacement for Original Daughter Card