Seagate External Desktop 2TB, FreeAgent Desktop. Hard drive capacity: 2000 GB, Hard drive speed: 7200 RPM, Hard drive size: 8.89 cm (3.5"). Weight: 1.02 kg. Compatible operating systems: Windows Vista, Windows XP Mac OSX 10.4.8 +, Dimensions (WxDxH): 125.91 x 207.08 x 39.79 mm