The Matrox VS4 Quad HD Card & Wirecast Studio for Windows Kit
includes the Wirecast Studio streaming software and a PCIe x8 capture and streaming card for Wirecast.
The card features four independent SDI inputs and supports simultaneous HD/SD capture and web streaming via Wirecast. Wirecast Studio lets you stream live broadcasts and add titles and other effects. Used standalone, Wirecast Studio supports a variety of webcams.