5 Things to Know About the 2018 MacBook Air’s SSD

The SSD uses a proprietary connector Apple’s Retina MacBook Air uses a custom PCIe-based NVMe interface that is not compatible with standard M.2 drives.

Third-party adapters are unreliable While adapters exist to fit standard drives, support is hit-or-miss, making upgrades or replacements more trouble than they are worth.

Treat storage as fixed at purchase Because of the proprietary connector and adapter issues, you should consider the storage capacity permanent when you buy the laptop.

Replacement is difficult and expensive Finding a compatible Apple SSD is hard, and the process involves more hassle than typical SSD swaps.

Plan ahead for your storage needs If you think you might need more space later, buy the higher-capacity model upfront to avoid headaches.