Evans RGS Pad Bass Drum Damper NVIDIA SLI Technology - dramatically scales performance by allowing two graphics cards to be run in parallel Full Microsoft DirectX 10 Shader Model 4.0 Support - also known as the Unified Shader Model, the Vertex shaders, Geometry shaders True 128-Bit Floating Point High Dynamic-Range (HDR) - allow you to experience cinematic, life like environments PCI Express 2.0 / 1.1 Support - allows 500MB a lane or up to 8 GB/s at 16x speeds; 2nd Generation Unified Shader Architecture - the latest in Unified Shader Architecture Technology