Description Compatible Part Number: A1405, 020-7379-A For Apple Part #: 661-6055, 661-6639 Fits Laptop Model: MacBook Air 13″ Model A1369 Mid 2011 Intel i5 1.7 GHz (Mid 2011) Intel i7 1.8 GHz (Mid 2011) MacBook Air 13″ Model A1466 Mid 2012 Intel i5 1.8 GHz (Mid 2012) Intel i7 2.0 GHz (Mid 2012)