8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for The Dell Latitude E6400 (Genuine A-Tech Brand) at Amazon.com
8GB 2X4GB Memory RAM for Dell Latitude E6400 XFR 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade System Specific Memory - Newegg.com
8GB 2X4GB Memory RAM for Dell Latitude E6400 XFR 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade System Specific Memory - Newegg.com
CMS 4GB (1X4GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude E6400, E6400 Atg, E6400 Xfr - A42 at Amazon.com
Dell Latitude 14.1" E5400/E6400 Laptop Notebook Windows 10 Pro 2.4 GHz Core 2 Duo 4GB Ram 160GB WIFI
Dell Latitude E6400 RAM Replacement - iFixit Repair Guide
Best Buy: CMS 4GB (2x2GB) Memory RAM Compatible with Dell Latitude E6400, E6400 ATG, E6400 XFR CM256646400SO0204
Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com
Dell Latitude E6400 RAM Memory Removal and Installation
CMS 2GB (1X2GB) DDR2 6400 800MHZ NON ECC SODIMM Memory Ram Compatible with Dell Latitude E6400, E6400 Atg, E6400 Xfr - A40 - Walmart.com
Dell XFR Latitude E6400 Intel Core2 Duo 2.53GHz 4G Ram Laptop {Intel V – Securis
Dell Latitude E6400 Laptop 14" Core2Duo 2.26GHz 2GB RAM 500GB Windows 7 PRO | eBay
CMS 2GB (1X2GB) DDR2 6400 800MHZ NON ECC SODIMM Memory Ram Compatible with Dell Latitude E6400, E6400 Atg, E6400 Xfr - A40 - Walmart.com
8GB (2X4GB) Memory PC2-6400 800Mhz DDR2 SODIMM RAM for Dell Latitude E6400 at Amazon.com