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 Air 11" Early 2015 SSD Replacement - iFixit Repair Guide
How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac
Surprise! iFixit says you can't do much to fix or upgrade the 2015 MacBook | Ars Technica
PCIe SSD Hard Drive 512GB For MacBook Air, Pro & Mac Pro