3 Things to Know About MacBook Air M3 Storage
Storage is soldered to the motherboard The M3 MacBook Air uses soldered NAND flash with a proprietary controller built into the M3 chip. There is no removable SSD module or standard interface.
You cannot upgrade storage later Unlike older MacBooks with replaceable drives, the M3 Air has no user-accessible storage slot. What you buy at checkout is permanent.
Choose your storage capacity carefully If you need more than the base 256GB or 512GB, you must pay for the upgrade upfront. There is no way to add more storage after purchase.