MacBook Air (13-inch, 2017) - Technical Specifications
Apple MacBook Air 2015 Laptop (MJVM2LL/A) 11.6" Display Intel Core i5, 4GB Memory 128GB Pre-Owned Silver A1465 - Best Buy
Apple MacBook Pro 13" Core i7-4th Gen 2.8GHz 16GB 500GB SSD OS X Sierra (A1502)
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
Apple MacBook Pro (13-inch Mid 2014) 2.8 GHz | Intel core i5 512GB SSD 16GB RAM | eBay
Configure your own 13-inch Apple MacBook Air (2015) at OWC