Apple MacBook Air (11-inch review: Apple MacBook Air (11-inch - CNET
MacBook Air 13-Inch Review (Mid-2012) - SlashGear
Amazon.com: Apple MacBook Air 11-inch MD223LL/A (4GB RAM, 64GB HD, macOS 10.13) (Renewed) : Electronics
SSD Upgrade Kits for MacBook Air 2012
How to Replace Soldered RAM on MacBook Air (13-inch, Mid 2012) - YouTube
The 2012 MacBook Air (11 & 13-inch) Review
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
MacBook Air (13-inch, Mid 2012) - Technical Specifications
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com