Amazon.com: 2015 Apple MacBook Pro with intel I7 (15-inch, 16GB RAM, 256GB SSD)- Silver (Renewed) : Electronics
Amazon.com: Mid 2015 Apple MacBook Pro with 2.5GHz Intel Core i7-4870HQ (15 inches, 16GB RAM, 512GB SSD) Silver (Renewed) : Electronics
How to install an SSD on a 15-inch Retina MacBook Pro
How to Upgrade the SSD on a MacBook Pro Retina Early/Mid/Late 2013/2014/2015 - Replacement Tutorial - YouTube
512GB SSUBX SSD Apple MacBook Pro Retina 13" A1502 Early 2015, 15 A1398 Mid 2015 | eBay
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