I just found out two things:
- the MBAir 2012 and 2015 have different slots
- the MBAir 2012 SSD is different size than the 2015 one
I ordered wrong adapter and wrong SSD (Kingston NV1 500GB) which I wanted to use for the 2012 11" Air which I then installed into my 2015 one, I then ordered another Kingston NVME SSD and the right adapter (8 + 18 pins) which fits the 2012 Air's slot but won't fit the SSD and not the length of the Air's slot so now I am in need of the right kind of SSD which, as suggested above, should be SATA m.2, please tell me if this is correct since I quickly need to order one and to get it within the shortest and then use the Kingston on my son't 2015 Air (with another adapter like the one I already used).
See picture attached
Grazie mille
p.s.
this is the adapter I bought which fits the Air's slot, the SSD apparently doesn't fit the adapter :-( or at least not gently and doesn't even cover the length of the slot so I won't be able to screw it back in place, I understand it takes an m.2 SATA SSD for the purpose but still wondering which kind it gotta be as on Amazon (Italian one) I see different plugs on such ones.