MacBook Pro: How to remove or install memory - Apple Support
Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini at Amazon.com
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 SODIMM PC3-12800 204-Pin SO-DIMM Memory
macbook pro - Can I upgrade RAM on late 2013 retina Mac Book Pro? - Ask Different
820-3332-A) Logic Board - MacBook Pro 15″ A1398 (2012-Early 2013)
2.8GHz i7 Logic Board 8GB Ram -13" MacBook Pro Retina A1502 late 2013 661-8149 | eBay
NEMIX RAM 16GB Kit (2x8GB Upgrade) DDR3-1600 SODIMM PC3-12800 for Apple MacBook Pro Mid 2012 / iMac Late 2012 / iMac 2013, Late 2014, Mid 2015, Mac Mini Late 2012 at Amazon.com
A1502 Logic Board (2.4GHz Core i5, 4GB RAM) for Apple MacBook Pro Retina 13-inch A1502 (Late 2013 – Mid 2014) APN : 661-8145 PPN : 820-3476-A, 820-3536-A - WIT Computers
How to upgrade Apple MacBook Pro RAM - YouTube
661-8303 Apple Logic Board 2.3GHz i7 16GB Ram Dual Graphics for MAcBook Pro 15-inch Retina Late 2013 A1398
New MacBook Pro makes DIY upgrades and repairs tough
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
Upgrading Ram in a Macbook Pro 13" | How to Upgrade Ram on 13" Macbook Pro - YouTube
macbook pro - Can I upgrade RAM on late 2013 retina Mac Book Pro? - Ask Different
Timetec Hynix IC 8GB Compatible for Apple DDR3L 1600MHz PC3L-12800 SODIMM Memory Upgrade for Early/Mid/Late 2011, Mid/Late 2012, Early/Late 2013, Late 2014, Mid 2015 MacBook Pro, iMac, Mac Mini (8GB) - Newegg.com
iFixit produces repair manual for MacBook Pro with Retina display, tests DIY's limits | Engadget
How to upgrade a Mac: Swap in new RAM, graphics card, hard drive and more | Macworld