Easiest Step by Step How-To Guide to Upgrading your Macbook Pro 13" Retina Mid 2014 SSD - YouTube
PCIe SSD – Apple MacBook Pro 13″ / 15″ Retina (Late 2013, Mid 2014)
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SSD Upgrade Kits for MacBook Air 2013 - 2017
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SSD upgrade on MacBook Pro 2014
How To: Replace the SSD in your MacBook Air 13" (Early 2015) - YouTube
MacBook Pro 13" and 15" Retina (Late 2013-Mid 2014) SSD
Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe | MacRumors Forums
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider