Features: • Ultimate slim size for easy carry • Solid Aluminum body for excellent heat dissipation • Design for 1.8" HITACHI HDD • Works for both Mac and PC (no driver required except Win98) • Support USB2.0 & USB1.1 (Transfer speed up to 480Mb/s) • Hot plug and play • Active LED to indicate power and data access • Powered by computer's USB port ,no AC power adapter required Specifications: • Net Weight: 55g • Dimensions: W 2.9" x L 3.7" x H 0.5" • 1 year warranty System requirements: • Windows 98SE/ WindowsME/ Windows 2000/ Windows XP • MacOS 9.2, MacOS 10.1.5, MacOS 10.2, MacOS 10.3.x or above • Any desktop or notebook computer with an available USB port