The Blackmagic Design DeckLink Mini Monitor HD is an internal PCI Express card designed to add a high-quality, dedicated video output to a desktop computer, primarily for professional playback and monitoring applications. Its sole function is to take video generated within editing, grading, or broadcast software and output it as a pristine SDI or HDMI signal to an external monitor, projector, or broadcast switcher. This enables accurate, full-screen monitoring of the program feed without the lag, compression, or interface clutter associated with using the computer's primary graphics card. It is an essential tool for colorists needing a clean feed to a reference monitor, editors requiring a full-screen client display, or live production operators playing back media to a switcher.

Installed in a PCIe slot, the card acts as a secondary display adapter that is recognized by the operating system and professional software like DaVinci Resolve, Adobe Premiere Pro, and OBS Studio. It supports standard and high-definition video formats up to 1080p, ensuring compatibility with a wide range of professional monitors. The inclusion of both SDI and HDMI outputs provides flexibility for connecting to different types of display equipment. As a straightforward, reliable, and software-agnostic output solution, the DeckLink Mini Monitor HD is a fundamental building block for creating a professional video workstation, ensuring that the final image can be viewed accurately on broadcast-standard equipment.