Patriot Gamer 2 Series Division 2 Edition DDR3 4 GB (1 x 4GB) PC3-12800 1600MHz 9-9-9-24 for Intel P67 Core i5 Core i7 PG34G1600EL Extreme Performance PC3-12800 (1600MHz) Enhanced Latency (9-9-9-24) Voltage: 1.5V XMP Ready,Lifetime Warranty Equipped with an extruded aluminum shield to provide improved cooling 100% Tested and Verified on AMD 890 Series, Intel X58, P55 and P67 platforms,RoHS Compliant