A1465 Logic Board (2.0GHz Core i7 8GB RAM) for Apple MacBook Air 11 inch (Mid 2012)
Apple MacBook Air (11-inch review: Apple MacBook Air (11-inch - CNET
MacBook Air 11" (Mid 2012) 2.0 GHz Logic Board
Apple MacBook Air 11" (Mid 2012) - Core i5 1.7GHz, 4GB RAM, 64GB SSD (Renewed) : Amazon.co.uk: Computers & Accessories
MacBook Air 11" Mid 2012 Repair - iFixit
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Upgrading RAM on a First Generation MacBook Air - YouTube
How to Replace Soldered RAM on MacBook Air (13-inch, Mid 2012) - YouTube