Apple 3.0Ghz, 16GB, Logic Board for MacBook Pro 13" Retina Mid 2014, A1502, MacBookPro11,1 - Apple Force
mac - Can I upgrade the memory on late 2013 Retina MacBook Pro? - Ask Different
Can I upgrade the RAM of the MacBook Pro 13' Retina from 8gb to 16gb after/during purchase? - Quora
Got myself an MacBook Pro Late 2013 Retina! i7 with 8GB Ram! 256GB SSD. Battery is new, and 2 brand new in box magsafe chargers 60W!! For just 80 bucks!! How about
Apple MacBook Pro (15-inch, 2013) review: Apple's high-end laptop gets better battery life and a lower price - CNET
Review: Apple's late-2013 13-inch MacBook Pro with Retina display | AppleInsider
How to upgrade Apple MacBook Pro RAM - YouTube
MacBook Pro (Retina, 13-inch, Late 2013) - Technical Specifications