Rosewill RX35-AT-SU BLK Aluminum 3.5 Black SATA USB 2.0 External Enclosure AC Adapter: Yes Material: Aluminum Dimensions: 7.60 x 4.45 x 1.22 Specifications: Data Transfer Rate: USB 2.0 (480Mbps) Maximum Capacity (per Bay): Up to 2TB Operating Systems Supported: Windows 98SE, ME, 2000, XP, Vista and Mac OS 8.6+ Weight: 1.76 lbs.