PNY OPTIMA 2GB (2x1GB) Dual Channel Kit DDR2 667 MHz PC2-5300 Notebook/Laptop SODIMM Memory Modules MN2048KD2-667 Storage Capacity - 2GB Technology - DDR2 SDRAM Form Factor - SO-DIMM 200pin Technology -- DDR2 SDRAM Memory Speed -- 667MHz DDR2-667/PC2-5300