Check the listing for details. Blackmagic Design Decklink Duo 2 4-channel 3G-SDI Video Card. Condition: New. Listed at 545.00 USD. A Pro-grade Playback Card DeckLink cards from Blackmagic Design are Sweetwater's go-to solution for top-notch PCI Express video playback and more in practically any format! From Hollywood productions to professional venues, video pros trust DeckLink with their work. This DeckLink Duo 2 3G-SDI Video Card offers multi-rate compatibility with SD and HD-SDI formats up to 1080p60 through four independent 3G-SDI connections, allowing for the inputting and outputting of various video standards simultaneously. It's SDK configurable as well, so its inputs and outputs can be professionally assigned in any possible combination you need. You can capture footage from cameras, decks, livestreams, and more and feed it directly into software applications.