This G.Skill dual-channel kit consists of two 4 GB DDR3-2133 memory modules (PC3-17000) of RipjawsX series. Total capacity is 8 GB. Decorated with black / blue heatsink modules are programmed to latencies of 10-12-12-30 at 2133 MHz and have gold plated contacts. The RipjawsX series has been developed specifically for the Intel "Sandy Bridge" platform.