The Decklink SDI 4K Capture & Playback Card from Blackmagic Design features a single multi-rate SDI input and multi-rate SDI output. These multi-rate connections accept single-link SD, HD, 3G, and 6G-SDI signals, providing support for resolutions from SD to Ultra HD 4K (3840x2160) and DCI 4K (4096x2160). Additionally, the Decklink SDI 4K includes RS-422 deck control, internal keying, and a reference input.

Decklink SDI 4K offers flexible format and system support, letting you work with compressed video formats such as ProRes and DNxHD, as well as 10-bit uncompressed video. When working with uncompressed video, all images are pixel-for-pixel identical to the source, without any generational loss. This lets you get sharper keying with green screens, cleaner compositions, superior color correction, and more. Support for common file formats provides ready-to-edit files for use in popular editing, effects, and design software applications. Decklink SDI 4K is compatible with Mac, Windows, and Linux based workstations.
Key Features

    PCIe capture/playback card compatible with Mac, Windows, and Linux based workstations and servers
    10-bit, 4:2:2 UHD 4K or DCI 4K by single-link 6G-SDI
    10-bit, 4:4:4 1080p by single-link 6G-SDI
    HD to SD down-conversion
    SD to HD up-conversion
    Hardware cross conversion between 720p and 1080p on playback
    RS-422 deck control
    Internal keying
    Reference input
    Blackburst and tri-sync
    Supports 16 channels of embedded SDI audio in HD, 2K, and 4K resolutions; 8 channels in SD