Amazon.com: Sintech M.2 nVME SSD Adapter Card Upgrade Kits,Compatible for MacBook Air(2013-2017 Year) and MacBook PRO(Late 2013-2015 Year,iMac : Electronics
Timetec 512GB MAC SSD NVMe PCIe Gen3x4 3D NAND TLC Read Up to 2,000MB/s Compatible with Apple MacBook Air (2013-2015, 2017), MacBook Pro (2013-2015), iMac (2013-2019), Mac Pro (2013), Mac Mini (2014) - Newegg.com
Amazon.com: OWC 1.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini (Late 2014) : Electronics
256GB SSD Hard Drive Suitable for Apple MacBook Pro 13″ A1502 MacBook 15″ A1398 MacBook Air 11″ 13″ A1465 A1466 OSX Sierra Late 2013 2014 Mid 2015 (256gb) – Lap Gadgets
Amazon.com: M.2 NVME SSD Convert Adapter, 12+16pin M.2 NGFF M-Key SSD Convert Card for MacBook Air Pro Retina Mid 2013 2014 2015 2016 2017, NVME AHCI SSD Upgraded Kit for A1465 A1466
Late 2013-2014 Macbook Pro Retina SSD Upgrade Notes - YouTube
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider
Amazon.com: USB C 3.2 Enclosure for 12+16 PIN MacBook SSDs, PCle SSDs Enclosure Supports for 2013-2017 MacBook Air, 2013-2015 MacBook Pro Retina, 2013-2014 iMac, 2013 Mac Pro, 2014 Mac Mini : Electronics
Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe | MacRumors Forums