macbook Air 13" 2012 topcase VS. 2013-2015 topcase

[Alan.L]

are there any difference and is it interchangeable?

 

[Sykulski]

Microphone is different. Trackpad is different. Trackpad can be switched but the microphone won't fit as 2013 has dual mics where 2012 just has one. The microphone cable is also completely different.

 

[Alan.L]

thanks. i now have 2012 and 2013 topcase with me here. the 2012 has screws damaged. i might able to jerryrig the 2013 case. all screw holes are same. i should able to tranafer the single mic to fit on 2013 topcase. then transfer the trackpad.