Xbox 360 Storage Capacity by Model: Complete Breakdown

Xbox 360 storage isn't one number—it depends on the console revision and add-ons.

Internal Hard Drives (Official)

• Original "Fat" 360: 20 GB (launch), later 60 GB, 120 GB, 250 GB, 320 GB SKUs.
• Xbox 360 S (Slim): 250 GB, 320 GB, 4 GB (internal flash).
• Xbox 360 E (Final): 320 GB, 500 GB, 4 GB flash.

External Expansion

• USB flash drives: Up to 2 TB (formatted as Xbox storage, max 2 partitions of 2 TB each).
• Official USB hard drives (discontinued) worked identically.

Check Your Console

Settings → System → Storage shows internal + any attached USB. Label on the console's bottom/rear lists the factory HDD size.

Total usable space = internal HDD/flash + formatted USB drives.