Product Features : Name: 1.8" USB CASE IC: GL811E (Taiwan) Rate: USB2.0 : 480Mbps Capacity: 5--80GSpecification: Suitable for hard disk type: HITACH 1.8" HDD Power supply: USB Material: Al & Mg alloy Size: 89.0*69.1*17.2 mm SystemRequirements:Windows98SE,Me,2000,2003,XP,Mac OS 9.x/X, Linux 2.4x or above