VisionTek 4GB DDR3 1600 MHz (PC3-12800) CL9 DIMM Low Profile Heat Spreader, Desktop Memory - 900389 Ultra-high performance 4GB DDR3 Single-Pack kit for Intel Core i3, i5, i7 Dual Channel processors and Triple Channel processors. Includes VisionTek High Performance Very Low Profile heat spreader 1600MHz, 9-9-9-24, 1.65V, with Intel and AMD support. 4GB module for use in high performance Intel Core i3, i5, i7 Dual Channel and Triple Channel systems. Lifetime warranty: This DDR3 memory kit is built to last under the most demanding, processor intensive environments, and is backed by a limited Lifetime warranty. PC3-12800 -clamp Data Rate: 1600 CL9 Density Per Module 4 GB