Welcome to a new level of PC performance with G.SKILL Ripjaws Series memory. Your computer will never be the same with 4GB of high-density DDR3 1600 SDRAM spread over two DIMMs. Eliminate data bottlenecks by taking advantage of multi-channel technology and multiplying your memory bandwidth. Ripjaws Series memory is designed specifically to complement Core i7 processors, the P55 Express Chipset and AMD AM3 platform. Optimized for speed, low latency and high stability, Ripjaws Series memory is the perfect solution to faster programs and quicker load times. Heat management is always important for any PC builder and enthusiast. G.SKILL understands this concern, which is why each Ripjaws Series DIMM comes with a stylish comb-like design heat-spreader, which dissipates heat by exposing it to cool air over a greater surface area and will look great in any case. These DIMMs also operate at a cool 1.5V for better internal temperatures and overclocking versatility. Upgrade your PC with raw power and own G.SKILL Rip Cas Latency: 9 Voltage: 1.5V Multi-channel Kit: Dual Channel Kit Timing: 9-9-9-24-2N ECC: No Buffered/Registered: Unbuffered Heat Spreader: Yes Features: Compatible with Dual Channel Intel Core i5 CPU for P55 chipset motherboard, Dual Channel Core i7 CPU for P55 chipset motherboard, and AMD AM3 Platform.