Macbook Air 11" early 2015; Link width is only 2x after Nvme ssd upgrade | MacRumors Forums
How-To: Upgrade the SSD in your MacBook Air or Retina MacBook Pro, boosting size & speed - 9to5Mac
How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac
MacBook Air (11-inch, Early 2015) - Technical Specifications
MacBook Pro and MacBook Air (Mid 2013 to Early 2015) SSD Upgrade Bundle - iFixit
MacBook Air 13" Early 2015 SSD Replacement - iFixit Repair Guide
256GB SSD Hard Drive for Apple MacBook Pro Air 11" 13" 15" A1502 A1398 A1465 A1466 (Late 2013-2015) / OSX Sierra/Mac Pro A1481 : Amazon.co.uk: Computers & Accessories
Which SSD is compatible with a MacBook Air (13-inch, Early 2015) Model A 1466? - Quora
MacBook Air (11 inch, early 2015) review - Macworld UK