8GB (2 x 4GB) Capacity, 240-Pin DIMM Interface, 1600 MHz Clock Speed, XMP Performance Profile, Intel Core i3, i5, & i7 Compatible The CMZ8GX3M2A1600C9B Vengeance 8GB (2 x 4GB) Dual Channel DDR3 Memory Kit from Corsair is a set of two modules each of 4GB capacity with a total of 8GB memory. It is equipped with aluminum heat spreaders that help to dissipate heat. Vengeance memory modules are designed specifically for the current CPUs. This memory module kit maximizes the system memory capacity with overclocked performance. Vengeance memory module kit run at 1.5V for maximum compatibility with all Intel Core i3 i5 and i7 processors as well as the 2nd generation Intel processor family.