Kingston Technology 2 GB Unbuffered System Specific Memory Model 2 Not a kit (Single) DDR2 667 (PC2 5300) 200-Pin SO-DIMM KTH-ZD8000B/2G One 2GB module of DDR2 Notebook Memory Specifically designed and tested for compatibility in various makes and models of notebook computers From the industry leader in PC memory Backed by a lifetime warranty and free technical support