MacBook Pro 13" Retina Display Late 2013 SSD Replacement - iFixit Repair Guide
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A-Tech 4GB 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
Chinese Engineer Manages to Upgrade RAM and SSD on M1 Mac - iClarified
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 RAM at Amazon.com
MacBook Pro 13" Retina 2.8GHz Logic Board, 16GB, Late 2013 DIY Parts replacement Logic Boards
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube