Winten 8GB (4GB X 2) 1600MHz PC3-12800 DDR3 DIMM Desktop Memory - LD1600-D8GB DIMM,1600MHz DDR3 Ram 8GB (4GB x 2) DDR3 PC3-12800 Desktop Ram Memory Modules (DIMM, 1600MHz) Unbuffer Non-ECC Memory, CL11 - 1.5V