How to Upgrade the SSD in a 13-inch MacBook Pro w/ Retina display (Late 2013 - Early 2015) on Vimeo
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
MacBook Pro + Air (Mid 2013-Early 2015) Blade SSD Upgrade Kit
How-To: Upgrade the SSD in your MacBook Air or Retina MacBook Pro, boosting size & speed - 9to5Mac