MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
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
The Super MacBook Pro Upgrade (1TB RAID SSD Upgrade + RAM Upgrade 2013) - YouTube
Logic Board for MacBook Pro 15" Retina Mid 2015 2.5GHz i7 16GB Ram R9 - Part Haven
Amazon.com: MCE Technologies 500GB Internal SSD Flash Upgrade for 13" and 15" MacBook Pro with Retina Display (Mid 2012 - Early 2013) - Includes Installation Kit! : Electronics
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
maxupgrades.com: 250GB SATA 6G Blade SSDModule for MacBook Pro Retina 13 inch2012 / Early 2013 Models [Model ID 10,2]
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
MacBook Pro 13" Retina Display Early 2013 SSD Replacement - iFixit Repair Guide
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
mac - Can I upgrade the memory on late 2013 Retina MacBook Pro? - Ask Different
MacBook Pro Retina 15 Early 2013 A1398-Logic Board CPU 2.8GHz, 16Gb, GT 650M 1Gb | eBay
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
Retina display MacBook Pro and other goodies from WWDC