PCIe SSD – Apple MacBook Pro 13″ / 15″ Retina (Late 2013, Mid 2014)
MacBook Pro Retina 13 and 15-inch Late 2013 - Mid 2014 SSD upgrade - Flexx memory
Amazon.com: 256GB SSD Hard Drive for Apple MacBook Pro Air 11" 13" 15" A1502 A1398 A1465 A1466 (Late 2013-2015) / OSX Sierra/Mac Pro A1481 : Electronics
Late 2013-2014 Macbook Pro Retina SSD Upgrade Notes - YouTube
Buy Refurbished 2014 Apple Macbook Pro MGX72LL/A SSD 13" Laptop 2.6GHz - 3.1GHz Core i5 - Techable
MacBook Pro (Retina, 13-inch, Early 2015) Upgrade to NVMe M.2 SSD - YouTube
Amazon.com: Odyson - 128GB SSD Replacement for MacBook Pro 13" Retina A1502, 15" A1398 (Late 2013, Mid 2014) : Electronics