The Matrox Millennium G450 DualHead DVI PCI is a graphics card that was part of Matrox's Millennium series, designed for use in professional and workstation environments. The DualHead feature allows you to connect two monitors to the same card, enabling dual display support. The DVI (Digital Visual Interface) outputs allow for high-quality digital video output to compatible monitors or digital display devices.

The Windows driver for the Matrox Millennium G450 DualHead DVI PCI ensures that the operating system can properly communicate with the graphics card, allowing you to take full advantage of its features, such as dual monitor support, DVI output, and hardware acceleration for 2D and 3D graphics.