How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider
How to Upgrade SSD in Macbook Air 13" (2017)? - SSD Sphere
Amazon.com: OWC 240GB 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
Amazon.com: M.2 NVME SSD Convert Adapter Card for Upgrade MacBook Air ( 2013-2017 ) : Electronics
Timetec 256GB MAC SSD NVMe PCIe Gen3x4 3D NAND TLC Read Up to 1,950MB/s Compatible with Apple MacBook Air (2013-2015, 2017), MacBook Pro (2013-2015), iMac (2013-2019), Mac Pro (2013), Mac Mini (2014) at Amazon.com
MacBook Air 13" Early 2017 SSD Upgrade to NVMe - iFixit Repair Guide
How to Upgrade & Replace an SSD in MacBook Air | OSXDaily