Ram memory 4GB DDR3 1066 [1] strong stock [2] 3 month warranty ... DIMM (SDRAM-DDR3, 1.65V, CL9, FBGA, Gold) Size - 4GB x 2 pieces in a sealed retail packageNumber of Modules ... - 2Memory Technology - DDR 3 Dual Channel PC3-12800Clock Rate - 1600 MHzCL9Timing: 9Pin Count ... improve, thank you for your understanding. Brand new Computer Ram memory 4GB DDR3 1066