The Eco Capture Quad SDI M.2 is a four-channel SD/HD/3G/2K-SDI capture card in the compact M.2 2280 form factor, built for small-form-factor PCs and thin systems where full-size PCIe slots aren't available. Four MMCX ports — each supplied with an MMCX-to-BNC cable — take SD/HD/3G/2K-SDI input up to 2048×1080 with embedded audio, for uncompressed capture from a camera or switcher's SDI output straight into a recording, editing, or streaming workflow. The card runs on a PCIe x4 M.2 interface and processes video at 10-bit 4:4:4, with frame-rate conversion, cropping, scaling, de-interlacing, and aspect-ratio conversion on board. Closed-caption and colour-space data extraction in 8-bit formats is supported alongside audio-format and channel-status extraction. It's compatible with Windows and Linux, via DirectShow, DirectKS, and V4L2.