MacBook Air Early 2015
A1466 emc2925 or emc3178
To open the Mac you need a PL4 Pentalobe screwdriver.
The motherboard number is on the lower edge of the motherboard, hidden under the SSD.
To read or write ROM use Medusa with A4060 or A4160 EasyFlash adapter. EasyFlash plugs in with the arrow to the back of the Mac.