Upgrade your MacBook Pro or MacBook Air with a new SSD to dramatically speed up your machine, and use your original SSD in an external enclosure.
How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac
How To Upgrade Your Macbook Pro with an SSD (2023 updated)
256GB PCIe SSD Install Kit Apple iMac 27 A1419 Late 2013,Mid 2014,2015 Retina 5K
The OWC Aura Pro X2 SSD Review: An NVMe Upgrade For Older Macs
OWC 480GB Aura N2 SSD Upgrade (Blade Only) for at MacSales.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
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
M.2 NVME SSD Convert Adapter for MacBook Air Pro Retina Mid 2013 2014 2015 2016 2017, NVME/AHCI SSD Upgraded Kit for A1465 A1466 - AliExpress
OWC Aura N SSD (Solid State Drive)
1TB SSD Kit for MacBook Pro and MacBook Air 2013 - 2015
A list of successful iMac 27 (2012-2019) SSD upgrades, Page 39
JetDrive 825 SSD Upgrade Kits for Mac - Transcend Information, Inc.