DELL LATITUDE E5420 Upgrading/Replacing/Changing RAM. - YouTube
Used Dell Latitude E5420 Laptop Computer 14" Screen Intel Core i3-2310M 2.2GHz Processor 4GB RAM 250GB HDD DVD WIFI Windows 10 Pro PC Grade B - Walmart.com
8GB DDR3-1333 (PC3-10600) SODIMM DR x8 Memory RAM for Dell Latitude E5420
8GB Memory for Dell Latitude E5420, E5430, E5520, E5530 DDR3 PC3-12800 RAM | eBay
Dell Latitude E5420 14" Laptop Intel i5 2.53GHz 8GB RAM 500GB Windows 10 PRO WIF | eBay