Blackmagic Design's DeckLink cards are high-performance capture and playback cards designed for professional video workflows. They support various formats, including SD, HD, Ultra HD, 4K, and 8K, with advanced features like 12-bit RGB support and high frame rates. DeckLink cards are compatible with a wide range of software applications, including DaVinci Resolve, Avid Media Composer, and Adobe Premiere Pro. They also support embedded SDI audio and have high-quality connections for pristine video and audio. With various models available, DeckLink cards cater to different needs and workflows, making them a popular choice for film, television, and commercial post-production professionals.