Features: • Solid Aluminum body for protection and excellent heat dissipation • Shock absorbent rubber strip on sides and bottom • Supports most 5.25" ATAPI CD-ROM/R/RW, DVD-ROM and DVD/CD-RW Combo • Supports any capacity 3.5" ATA Hard Drives • Works with both Mac and PC computers • Supports both Hi-Speed USB2.0 & USB1.1 connection • Stackable design • Hot plug and play • Active LED to indicate power and data access • AC adapter included Specifications: • Net Weight: 2.0lb • Dimensions: W 6.9" x L 9.7" x H 2.3" • 1 year warranty System requirements: • Windows 98SE/ WindowsME/ Windows 2000/ Windows XP • Mac OS 9.2, Mac OS 10.1.5, Mac OS 10.2, Mac OS 10.3 or above • Any desktop or notebook computer with an available USB port