MacBook8,1 Early 2015 (Space Gray): MJY32LL/A (1.1 GHz Core M)
MacBook8,1 Early 2015 (Space Gray): MJY42LL/A (1.2 GHz or 1.3 GHz Core M)
MacBook9,1 Early 2016 (Space Grey): MLH72LL/A (1.1 GHz Core M3)
MacBook9,1 Early 2016 (Space Grey): MLH82LL/A (1.2 GHz M5)
MacBook9,1 Early 2016 (Space Grey): BTO/CTO (1.3 GHz Core M7)
MacBook10,1 Mid 2017 (Space Grey): MNYF2LL/A (1.2 GHz Core M3)
MacBook10,1 Mid 2017 (Space Grey): MNYG2LL/A (1.3 GHz Core i5)
MacBook10,1 Mid 2017 (Space Grey): BTO/CTO (1.4 GHz Core i7)