MacBook Pro 13" Retina (Function Keys, Late 2016-2017) SSD - iFixit Store
Teardown confirms both 13" and 15" Touch Bar MacBook Pros have non-removable SSDs
Apple MacBook Pro review (13-inch, 2016): This is basically the Retina MacBook Air you've always wanted - CNET
MacBook Air 13" Early 2017 SSD Upgrade to NVMe - iFixit Repair Guide
Upgrading the new MacBook Pro is still a major pain
Fledging 512GB Feather M17 PCIe NVMe Gen 3.0x4 SSD Upgrade – DIY kit & OS Included – Compatible with Apple MacBook Pro 13" A1708 2016 & 2017 : Electronics
Touch Bar MacBook Pro models have non-upgradeable SSDs, seemingly under-sized batteries - 9to5Mac
MacBook Pro (13-inch, 2016, Four Thunderbolt 3 ports) - Technical Specifications
2016 13-Inch MacBook Pro Has Removable SSD in Non-Touch Bar Model [PICS] | iPhone in Canada Blog
OWC Solid State Drives - OWC Digital
How to Upgrade & Replace an SSD in MacBook Air | OSXDaily
Macbook Pro 2016 Upgrade Ssd Discount, 55% OFF | www.ingeniovirtual.com
Touch Bar MacBook Pro models have non-upgradeable SSDs, seemingly under-sized batteries - 9to5Mac