2GB STICK For IBM-Lenovo 3000 Notebook Series G430 G530 G550 2958-xxx N200 N500 V200 Y400 Y410 SO-DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory 2GB STICK SO-DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For IBM-Lenovo 3000 Notebook Series. (See Compatibility List Below)