The Viper 3 series of memory from Patriot Memory is designed with true performance in mind. The Viper 3 series offers the best performance and stability for the most demanding computing conditions. It uses a specially designed heat shield for optimal heat dissipation, ensuring stable performance even when using the most demanding applications. Made from high-quality materials, the Viper 3 memory from Patriot Memory is hand-tested and validated for system compatibility. Available in dual and quad channel kits, with speeds ranging from 1600 MHz to 2133 MHz at 1.5 volts and ready for XMP 1.3.