Xbox 360 - Wikipedia, the free encyclopedia
Detachable Hard Drives 20, 60, 120 or 250 GB (older models); 250 or 320 GB (Xbox 360 S models) Memory Cards (Removable) (Original design only) 64 MB, 256 MB, 512 MB On-board storage chip Arcade Consoles (later models) 256 MB, 512 MB Budget level ......