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
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider
Amazon.com: OWC 1.0TB Aura Pro NT High-Performance NVMe SSD Upgrade Kit with Tools, Compatible with 2016-2017 13-inch MacBook Pro Non-Touch Bar : Electronics
How to install an SSD on a 15-inch Retina MacBook Pro