Restored Apple MacBook Pro 15.4-Inch Laptop with Retina Display MGXA2LL/A, 2.2 GHz Intel Core i7, 16GB RAM, MacOS 10.0, 256GB SSD, Silver (Refurbished) - Walmart.com
Upgrading RAM in Your MacBook Pro 13" or 15" : 19 Steps (with Pictures) - Instructables
4GB RAM Memory (PC3-8500) for Apple MacBook 13 inch A1278 Late 2008, A1342 Late 2009, A1342 Mid 2010. Apple MacBook Pro 13 inch A1278 Mid 2009, A1278 Mid 2010, A1286 - Late 2008