Ac To USB Charger (500MA) Next generation architecture delivers incredible gaming performance at maximum resolution and quality settings New high-speed 32x anti-aliasing smoothes edges for top notch visual quality Support for NVIDIA SLI technology for the ultimate gaming performance NVIDIA PolyMorph Engine, the geometry processing engine built from the ground up for DirectX 11 tessellation, enables incredibly detailed game characters and terrain with blazing performance Specifications Interface - PCI Express 2.0 x16