Patriot's Viper Xtreme Series, Division 2 Edition memory kits are designed for Intel'sÂ 2nd Generation Core processors. Engineered for PC Gamers and enthusiasts the Viper Xtreme Division 2's utilize a custom designed heatshield solution with an outer shield built around a copper core to provide enhanced cooling. Each module has 6 grams of copper at its core paired with extruded aircraft-grade aluminum outer shield. Built from only using the highest quality pre-sorted IC's available, they are rigorously tested and validated on the IntelÂ 6 Series platform to achieve maximum performance and stability. These modules are engineered to reach PC3-12800 (1600MHz) at 8-9-8-24 timings and are available 4GB kits (2 x 2GB) and 8GB kits (2 x 4GB). Each module is 100% hand-tested to quality assurance and is backed by a full-lifetime warranty and industry leading customer service.