1GB [1x1GB] Memory RAM Upgrade for the Dell Latitude E6400 ATG E6400 XFR E6400N | eBay
8GB 2x4GB PC2-6400 800Mhz DDR2 SODimm Memory for Dell Latitude E6400 E6500 at Amazon.com
Dell Latitude E6400 Laptop, 14.1" Display, Intel Core 2 Duo Processor, – TekRefurbs
Dell Latitude E6400 Laptop, 14.1" Display, Intel Core 2 Duo Processor, – TekRefurbs
Lot of 5x Dell Latitude E6400 Business Laptop 14" 2GB RAM intel Core 2 Due CPU P8700 2.53GHz No Storage X463M - Computer | Network | Telecom | Lab & medical Equipment
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
4GB 2 x 2GB DDR2 Memory RAM for DELL LATITUDE 5400 5500 6400 6500 ATG E6400 D830 | eBay
Dell Latitude E6400 RAM Replacement - iFixit Repair Guide