apple-history.com / MacBook Air (13-inch, Mid 2011)
Amazon.com: OWC 1.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini ( Late 2014) : Electronics
Apple MacBook Air review (13-inch, mid 2011) - The Verge
Real Leather MacBook Cases & Skins. Handmade and Totally Unique. – Glitty