Form and function intersect beautifully in the NexStar3 NST-260U2-BL 2.5" external enclosure. The elegant blue color, splendid mirror finish and sleek curves raises the bar to new heights in style. This enclosure is capable of supporting USB 2.0 or the 1.1 interface for flexibility and speedy data transfers, with a 2.0 data transfer rate of up to 480 Mbps. You're in luck even if you want to transfer big and bulky files. The enclosure is Hot-Swappable, so you can install/uninstall this enclo AC Adapter: USB Power Material: Aluminum Dimensions: 132 x 80 x 15mm Internal Interface: IDE Maximum Capacity (per Bay): Up to 320GB Features: Aluminum Casing Cools Down Your Hard Drive Transfer Rates Up To 480MBPS w/ USB 2.0  (12MBPS w/ USB1.1) Easily Add Storage To Any System With USB Hot-Swappable: Plug And Play Without Rebooting Attractive Blue LED Indicates Power/HDD Activity Supports up to 320 GB hard drives Operating Systems Supported: Microsoft Windows XP/Vista/7 or Mac OS X v10.4 and Up Package Contents: 2.5" External Enclosure User Manual Driver Disk USB Cable Bag