Centon 2GB DDR2 SDRAM Memory Module - 2GB - 667MHz DDR2-667/PC2-5300 - DDR2 SDRAM - 200-pin SoDIMM Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency 667 MHz of memory speed makes your computer great at multitasking 2 GB memory allows you to have more programs open at a time DDR2 SDRAM operates at up to 400 MHz data bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation 200-pin for faster, dependable performance and better access to data and information Notebook device support for your ram module for maximum productivity and convenience SoDIMM form factor with 200-pin and 2 GB memory size effectively lessens the electrical load on the memory controller to allow maximum feasibility