When it comes to experiencing high-quality SDI capture and playback, the Blackmagic Design DeckLink SDI 4K BDLKSDI4K is the ideal choice for you. It is the world’s smallest and most economical multi-rate SD/HD and Ultra HD SDI video card. It enables you to connect to any HD-SDI, SD, 2K, and Ultra HD equipment. In addition, this card also features an RS-422 deck control, reference input, and internal keying. It is essential for numerous professional tasks, such as editing, designing, and more. The Blackmagic Design DeckLink card is compatible with the newest versions of Windows, Macintosh, and Linux.