1. USB power audio jack board replacement for MacBook Air 13 A1466 (2012) 820-3214-A 821-1477-A 2. Replace your broken, damaged or non-working item with a new one 3. Each item has been checked and in good condition before shipping 4. Completely fit and work 5. Professional installation is highly recommended. We will not be responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement parts
