Crucial 16GB 2x8GB PC3-12800 DDR3 1600MHz RAM for MacBook Pro 13" Mid-2012 A1278 | eBay
17-inch MacBook Pro Mid 2010 Memory Installation Video - YouTube
Mac Compatible Memory | High Performance RAM | Crucial.com
US 16GB 2x8GB DDR3L-1600mhz 1.35V Memory For MacBook Pro Mid-2012 A1286 A1278 | eBay
Macbook Pro RAM Upgrade Kit- 8GB (2 x 4GB) for 2011 2012 A1278 A1286 13 15" inch | eBay
Crucial RAM 8GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT8G4SFRA32A at Amazon.com
A-Tech 8GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz SODIMM PC3-12800 204-Pin SO-DIMM Memory Upgrade at Amazon.com
Crucial 8GB Memory Upgrade for Apple MacBook Pro 13 inch (Mid 2012) PC3-12800S 1600MHz DDR3 SODIMM RAM (Crucial CT8G3S160BM Equivalent) - Newegg.com