MacBook Pro 13" Retina Display Early 2015 SSD Replacement - iFixit Repair Guide
Amazon.com: 256GB SSD Hard Drive for Apple MacBook Pro Air 11" 13" 15" A1502 A1398 A1465 A1466 (Late 2013-2015) / OSX Sierra/Mac Pro A1481 : Electronics
512GB SSUBX SSD Apple MacBook Pro Retina 13" A1502 Early 2015, 15 A1398 Mid 2015 | eBay
Early 2015 MacBook Pro 13" SSD speeds too… - Apple Community