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
Amazon.com: OWC 2.0TB Aura Pro X2 Complete SSD Upgrade Solution with Tools & OWC Envoy Pro Enclosure Compatible with MacBook Air (Mid 2013-2017) and MacBook Pro (Retina, Late 2013 - Mid 2015) : Electronics
How to Upgrade MacBook Pro Retina SSD -mac&egg-
655-1860) 1TB SSD - Apple MacBook Pro Retina 2015
15" 15 Inch Retina MacBook Pro A1398 Mid 2015 Complete Disassembly (Almost) SSD Upgrade - YouTube
How-To: Upgrade the SSD in your MacBook Air or Retina MacBook Pro, boosting size & speed - 9to5Mac
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider