Blackmagic Design - DeckLink Duo 2https://www.photocineshop.com/en/products/Blackmagic-Design-DeckLink-Duo-2-EU3QIH?cat=765
The DeckLink Duo 2 features 4 independent 3G-SDI connections so it can now work in high HD frame rates and it supports SDI formats in SD and HD up to 1080p60. Each SDI connection is completely independent, meaning that each of the 4 connections can input or output entirely different video standards and content streams, all at the same time. DeckLink Duo 2 can also capture and playback at the same time, and also includes a reference connection for black burst/tri-sync. Developers can use the SDK to configure the four SDI connections to be any combination of inputs and outputs.
Featuring high performance 4 lane Generation 2 PCI Express, DeckLink Duo 2 takes up only one single PCI slot in the computer, which makes it the perfect solution for system integrators and developers that need completely customizable, flexible I/O configurations on a single card.