MacBook Pro (Retina, 13-inch, Early 2015) Upgrade to NVMe M.2 SSD - YouTube
Teardown of New Mid-2013 MacBook Air Reveals Smaller SSD, Increased Battery Capacity - MacRumors
Amazon.com: MCE Technologies 2TB Internal SSD Flash Upgrade for MacBook Pro Retina (Mid 2012 - Early 2013) - Includes USB 3.0 Enclosure for Original Drive & Install Kit! : Electronics
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider