MacBook Pro (Retina, 13-inch, Early 2015) Upgrade to NVMe M.2 SSD - YouTube
Upgraded macbook pro 15” mid 2015 ssd to 1TB : r/macbookpro
Amazon.com: Reletech 1TB SSD NVMe M.2 Gen 3x4 Upgrade Solid State Drive for MacBook Air(Mid 2013-2017) MacBook Pro (Retina, Late 2013 - Mid 2015) Mac Pro(2013)&Mini (2014),iMac(2013-2017) (P400M, 1TB) : Electronics
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
15" & 13" Apple MacBook Pro Retina Late 2013 2014 2015 PCIe 1TB SSD A1398 A1502 | eBay
Amazon.com: MCE Technologies 2TB SSD for MacBook Pro 2015 15-inch Only: PCIe-Based 4 Lane (x4) NVMe 8.0GT/s SSD Flash Storage Upgrade - 2900MB/s Read, 2100MB/s Write, Requires macOS 10.13.x (High Sierra) or
Upgrade SSD on Mid-2015 15" Retina. Which SSD? | MacRumors Forums
Amazon.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
External SSD Enclosure for Select Mid 2013 to Mid 2015 Macs
Amazon.com: OWC 2.0TB 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