The Matrox G200eh (WDDM 12) is a graphics card from Matrox, designed for embedded systems, point-of-sale terminals, and industrial applications. It uses the WDDM 12 (Windows Display Driver Model 12), which is a driver model introduced by Microsoft for newer versions of Windows, offering better performance and compatibility with modern operating systems. The Matrox G200eh driver enables the operating system to interact with the GPU, ensuring proper display output, video acceleration, and overall functionality.