ThinkServer PC3-10600 DDR3 (1333MHz) memory is meant to provide customers with the ability to improve overall performance of ThinkServer systems while providing the flexibility to scale to your growing needs. DDR3 memory technology does not require memory pairing. Thus, it is easy to scale with your computing needs by adding additional memory more efficiently through single DIMM offerings. Also, this memory is a power-friendly alternative with low-power consumption - making it the most cost-effective memory solution available.