8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for the Dell Latitude E6400 (Genuine A-Tech Brand) 8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for the Dell Latitude E6400 100% Genuine A-Tech Brand Memory 4GB DDR2-800 PC2-6400 Non-ECC Unbuffered 200 Pin 1.8V CL=6 Memory Limited Lifetime Warranty High Quality Ram specifically designed for the Dell Latitude E6400