The Blackmagic Design DeckLink SDI 4K is a professional-grade internal capture and playback card designed for high-performance video production, post-production, and broadcast applications. This PCI Express card enables a desktop workstation to become a powerful video production hub, capable of handling the high data rates required for modern video formats.

It provides a comprehensive set of broadcast-quality connections, supporting resolutions from standard definition all the way up to 4K Ultra HD. The card features four independent 12G-SDI inputs and outputs, offering tremendous flexibility for multi-channel workflows, such as simultaneous recording and playback, working with quad-link 4K, or handling multiple HD streams. It supports a wide range of video standards, including 1080p, 1080i, 720p, and 4K in various frame rates up to 60 frames per second, and is compatible with popular professional editing and compositing software.

The DeckLink SDI 4K also includes professional audio support, featuring embedded SDI audio as well as analog stereo audio input and output via a breakout cable for connection to studio monitors or mixing consoles. Its robust design ensures reliable, frame-accurate performance for critical tasks like color grading, live switching, and broadcast playback. This card is a core component for editors, colorists, and broadcast engineers building a high-end SDI-based video pipeline.