A-Tech 16GB (2x8GB) RAM for Apple iMac Late 2015 27 inch Retina 5K | DDR3L 1866MHz / 1867MHz PC3L-14900 1.35V 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Amazon.com: Apple MacBook Pro (15-Inch, 16GB RAM, 256GB Storage, 2.2GHz Intel Core i7) - Space Gray (Previous Model) : Electronics
Apple MacBook Pro with Retina Display (13-inch, 2015) review: Apple's 2015 MacBook Pro is still around for those who want fewer dongles - CNET
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
Can I upgrade the RAM of the MacBook Pro 13' Retina from 8gb to 16gb after/during purchase? - Quora
Logic Board for 2015 Apple MacBook Pro Retina i7 16GB, A1398
SOLVED: Can RAM be upgraded? - MacBook Pro 13" Retina Display Mid 2014 - iFixit
How to Upgrade Soldered RAM 8GB to 16GB on MacBook Pro (Touch Bar) - YouTube
How To Upgrade RAM On MacBook Air? - YouTube
MacBook Pro 13" Retina 2.9GHz Logic Board, 16GB, Early 2015 - 661-02357
A-Tech for Apple 16GB Kit (2x 8GB) DDR3 1600MHz PC3-12800 204-pin SODIMM MacBook Pro (Mid 2012 13”/15”), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015, 21.5”/27”, Retina 5K) Memory RAM Upgrade at Amazon.com
4GB to 16GB RAM Upgrade (MacBook Air 13-inch) - YouTube
Restored Apple Macbook Pro 13.3-inch (Retina) 2.7Ghz Dual Core i5 (Early 2015) MF839LL/A 128GB SSD 8 GB Memory 2560x1600 Display Mac OS X v10.12 Sierra Power Adapter Included (Refurbished) - Walmart.com