2 GB, DDR3 PC3-12800, CL=11, Unbuffered, NON-ECC, DDR3-1600, 1.5V, 256Meg x 64 Memory Type: DDR3 SDRAM - DIMM 240-pin Warranty: Limited Lifetime, 100% Tested Fully buffered : Designed for next-generation servers, features an advanced memory buffer Registered/Buffered : Registered or buffered modules delay all information transferred to the module by one clock cycle Voltage For example 2.6V. Indicates the power used by the module. The lower the better CT25664BA160B is a single 2GB DDR3 Desktop module that operates at speeds up to 1600 MT/s and has a CL11 latency. It is Unbuffered and is non-ECC. It conforms to the industry standard UDIMM layout of 240 pins and is compatible with computers that take DDR3 UDIMM memory.