Specifications:Capacity1TB / 2TBColorBlack / White / BlueDimensions (L x W x H)500GB/1TB:116 x 79 x 14.9mm (4.6 x 3.1 x 0.6 in)2TB:116 x 79 x 20.3mm ( 4.6 x 3.1 x 0.6 in)Weight500GB:126g (4.4oz)1TB:152g (5.4oz)2TB:211g (7.4oz)InterfaceSuperSpeed USB 3.0 (backward compatible with USB 2.0)TexturePlasticWarranty3 yearsOpt. VoltageUSB DC 5VSystem requirementsWindows XP or laterMac OS X 10.6 or laterLinux Kernel 2.6 or laterAccessoriesUSB 3.0 cable; Quick Start GuideOpt. Temperature5°C (41°F) to 50°C (121°F)