MacBook Air (13-inch, Mid 2012)

Model numbers:A1466
Order numbers:MD231LL/A (128 GB), MD232LL/A (256 GB)
Model Identifiers:MacBookAir5,2
13.3" 1.8 GHz (Core i5) or 2.0 GHz (Core i7); 3 MB (1.8 GHz) 4 MB (2.0 GHz) shared L3; 128, 256, or 512 GB flash storage