Apple MacBook Pro 15.4" Intel Core i7, 8GB RAM - 256GB SSD (ME293LL/A) Late 2013 - Silver (Fair Cosmetics, Fully Functional) - Walmart.com
MacBook Pro (Retina, 15-inch, Late 2013) - Technical Specifications
15" MacBook Pro Retina A1398 LOGIC BOARD Late 2013
13" Retina Display Apple MacBook Pro “Core i5" 2.4Ghz 8Gb Ram 128GB SSD
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
macbook pro - Can I upgrade RAM on late 2013 retina Mac Book Pro? - Ask Different
MacBook Pro 13" Retina Display Late 2013 Teardown - iFixit
MacBook Pro 13" Retina Display Late 2013 Logic Board Replacement - iFixit Repair Guide
MacBook Pro 15" Retina Display Late 2013 Teardown - iFixit
How To: Apple Mac Pro RAM Upgrade! (Late 2013) - YouTube
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
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