4 Things to Know About Expanding M1 iMac Storage

Internal storage is soldered and cannot be upgraded The M1 iMac has no user-accessible drive bays, so you cannot swap or add internal storage after purchase.

External SSDs are your only expansion option Use the Thunderbolt/USB 4 or USB 3 ports to connect an external SSD or NAS. This is the sole way to add more storage.

Thunderbolt speeds make external drives fast enough A Thunderbolt external SSD can match or exceed internal drive speeds for most tasks, so performance won’t be a bottleneck.

The setup is less elegant but fully functional You cannot hide the drive inside the iMac, but a small external SSD on your desk works reliably for daily use.