Hard disk drive capacity 1000 GB.
Windows 8 / 7 / Vista, Mac OS X 10.4.8 or later.
Operating System Compatibility: Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks.