Device match · 8 of 29 chargers pass
A MacBook Air wants about 45 W and a Watch / earbuds about 5 W. Plugged in together they need 45 W + 5 W on two ports at once, which is a different question from "is it a 50 W charger". Most multi-port chargers split power unevenly, so we check the manufacturer’s own split table for every product below.
MacBook Air: ships with a 30-35 W adapter, 45 W keeps it charging under load.


"Split not published" means the maker sells a multi-port charger without saying how it divides power. We do not guess; the data score on the right tells you how much of the record is sourced.