4 Things to Know About the MacBook Air Retina (2020) SSD
Regarding the MacBook Air: 1. The SSD is soldered to the motherboard You cannot upgrade or replace the SSD after purchase. Your storage choice at order time is permanent.
You pay Apple’s upgrade tax Apple charges a premium for higher storage tiers, and you cannot avoid it by upgrading later.
The integrated flash is fast Apple’s soldered SSD offers good read and write speeds, so performance is not a concern.
Plan your storage needs carefully Buy the capacity you expect to need for the laptop’s lifetime, because there is no way to add more later.