GV-N220D2-1GI Powered by NVIDIA GeForce GT 220 GPU Supports PCI Express 2.0 Microsoft DirectX 10.1 and OpenGL 3.1 support Integrated with industry’s best 1GB GDDR2 memory and 128-bit memory interface Supports NVIDIA PureVideo® HD technology Features Dual link DVI-I / D-sub / HDMI with HDCP protection *Minimum 450W or greater system power supply.