MacBook (Air/Pro)-Modell bestimmen 19. Januar 2021 MacBook-Modell bestimmen: https://support.apple.com/de-de/HT201608 MacBook Air-Modell bestimmen https://support.apple.com/de-de/HT201862 MacBook Pro-Modell bestimmen: https://support.apple.com/de-de/HT201300