MacBook Pro 13" Unibody A1278 (Mid 2012) RAM Upgrade Kit
Apple MacBook Pro Mid 2012 i5-3210M 2.5 GHz 4GB RAM 500GB HDD MD101ll/A A1278 #9 | eBay
MacBook Pro: How to remove or install memory - Apple Support
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Replace your 2009-2012 MacBook Pro HD with an SSD
Apple MacBook Pro A1278 (Mid 2012) 13.3" Laptop 8GB RAM, Storage options- Grade B
MacBook Pro: How to remove or install memory - Apple Support
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 PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Apple Macbook Pro A1278 13" Laptop i5-3210M (Mid-2012) -
MacBook Pro A1278 Mid-2012 MD101LL/A RAM Memory 2GB 1Rx8 PC3-12800S-11-10-B2
16GB 8GB 4GB DDR3 1600MHz RAM for Apple MacBook Pro Mid 2012 sodimm Memory lot | eBay
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
MacBook Pro 13" Unibody Mid 2012 Repair - iFixit
2012 Macbook Pro 13" A1278 RAM Upgrade - YouTube
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Best Buy: Apple MacBook Pro 13.3-inch 500GB Intel Core i5 Dual-Core Laptop (MD101LL/A) Mid-2012 Pre-Owned Silver A1278
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
Apple MacBook Pro 13.3-inch 500GB Intel Core i5 Dual-Core Laptop (MD101LL/A) Mid-2012 Pre-Owned Silver A1278 - Best Buy