VisionSDI2 is a dual-channel PCIe x4 HD‑SDI video capture card supporting SD‑SDI, HD‑SDI and 3G‑SDI (including 2K Digital Cinema modes). It captures two streams up to 2048×1556 at 24 fps or 1920×1080 at 60 fps, with four BNC SDI connectors and 128 MB total frame buffer (64 MB per channel). It provides up to 650 MB/s DMA bandwidth, loop‑through outputs, and DirectShow support for Windows and Linux, plus Datapath software for configuration and wall integration.