Kingston Technology HyperX 2 GB Low-Latency Notebook Memory Single DDR2 800 (PC2 6400) 200-Pin DDR2 SO-DIMM KHX6400S2LLK2/2G 2GB module of 800MHz Class 5 DDR2 Notebook Memory Utilizes HyperX module with faster latency timing for higher performance and speed Specifically designed and tested for compatibility in various makes and models of notebook computers From the industry leader in PC memory Non-ECC Low-Latency 200-pin unbuffered SODIMM type