Compatible Replacement MACBOOK AIR 13 A1466 (MID 2012) I/O BOARD CABLE/ AUDIO FLEXI A1466 I/O Board Cable Mid 2012 Compatible Models - MacBookAir5,2 Mid 2012 A1466: MD231LL/A (1.8 GHz Core i5) - MacBookAir5,2 Edu Only 2012 A1466: MD628LL/A (1.8 GHz Core i5) - MacBookAir5,2 Mid 2012 A1466: MD232LL/A (2.0 GHz Core i7) - MacBookAir5,2 Mid 2012 A1466: MD846LL/A (2.0 GHz Core i7) Features: - Compatible Apple Part Numbers: 923-0128 - Printed Part Number: 821-1477-A Professional Technical Installation highly recommended