Patriot Viper II Sector 5 PVV34G1600LLKB DDR3 4 GB (2 X 2 GB)&nbsp; PC3-12800 1600MHz 8-9-8-24 for Intel Core i5 Core i7 with Free Futuremark Benchmarking Software Download,Patriot,PVV34G1600LLKB" /> Extreme Performance PC3-12800 (DDR3 1600MHz) Low Latency (8-9-8-24) with XMP Ready Voltage: 1.65V Equipped Patriot Viper II Heat Shields with integrated ACC (Aluminum Copper Composite) technology 100% Tested and Verified on Intel P55 platform with Core i5 and Core i7 processors FREE Futuremark 3DMark Vantage Benchmarking software download. Product key is included inside the box. Lifetime Warranty