Mid-2012 Macbook Pro 16GB RAM Upgrade How To - YouTube
CT3373650 Crucial 16GB SoDimm PC12800 Memory
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
Memory RAM Upgrades for MacBook Pro (2012 - Late 2016)
memory - 16GB 1600mhz vs 16GB 1866mhz RAM for Macbook Pro 13" mid 2012 - Ask Different