Apple Macbook Pro 13.3" Retina A1502 2014 Mid 2013 Late i7@2.8G 8GB RAM 256G SSD | eBay
Apple Macbook Pro 15.4"(Mid 2013 Retina Display)Intel-Core i7(2.3GHz)/
mac - Can I upgrade the memory on late 2013 Retina MacBook Pro? - Ask Different
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
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Lab Tested: Ultimate MacBook Air 2013 holds its own against the MacBook Pro | Macworld
A-Tech 8GB Kit (2x4GB) 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 Upgrade
Memory RAM Upgrades for MacBook Pro (2012 - Late 2016)
MacBook Pro: How to remove or install memory - Apple Support
MacBook Pro 13" Retina Display Late 2013 Teardown - iFixit
Teardown of New Mid-2013 MacBook Air Reveals Smaller SSD, Increased Battery Capacity - MacRumors
MacBook Pro (Retina, 13-inch, Late 2013) - Technical Specifications
Apple MacBook Air 13" A1466 Mid 2013, i5 1.40GHz, 8GB RAM, 128GB SSD, C4*423 | eBay