XFX PVT88PYDF4 GeForce 8800GT 512MB GDDR3 PCI Express x16 SLI Ready Video Card (Dual DVI/S-Video) PCI Express SLI-ready video card with full Microsoft DirectX 10 Support Full support for Microsoft DirectX 10.0 Shader Model 4.0 PCI-Express and Open GL 2.0 support NVIDIA SLI Technology allows two graphics cards to run simultaneously Dual Link DVI for high resolution monitors (up to 2560x1600)