Dell Latitude E6520 RAM Replacement - iFixit Repair Guide
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude E6320 Notebook - A35 at Amazon.com
Restored Dell Black 13.3" Latitude E6320 WA5-0975 Laptop PC with Intel Core i5-2520M Processor, 8GB Memory, 128GB Solid State Drive and Windows 10 Home (Refurbished) - Walmart.com