MacBook and MacBook Pro (Non-Retina) SSD Upgrade Kit
OWC Aura N SSD (Solid State Drive)
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
MacBook Pro & MacBook Air (2013-2015) SSD Upgrade to M.2 NVME SSD; BIGGER & BETTER | Ultimate Guide! - YouTube
Amazon.com: Sintech NGFF M.2 nVME SSD Adapter Card for Upgrade 2013-2015 Year Macs(Not Fit Early 2013 MacBook Pro) (Black) : Electronics
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
Amazon.com: OWC 1.0TB 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
How to install an SSD on a 15-inch Retina MacBook Pro
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider