Features: • Support both Hi-Speed USB2.0 and USB1.1 ports • Easy installation • Support most 5.25" & 3.5" IDE HDD • Supports 5.25" CD-ROM/R/RW,DVD-ROM and DVD/CD-RW Combo • Data transfer rate up to 480Mb/sec • Hot plug capability • Built in universal power supply and fan • Active LED to indicate power and data access • Vertical, horizontal and stackable desktop unit • 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 Specifications • Net Weight : 4.5lbs • Dimensions : (W) 7.5, (L) 10", (H) 2.4" • Power Supplies : 50W switching power (UL/CSA/TUV approved) • Power input : 100-240V AC, 50-60Hz • DC output : 5V@2.6A, 12V@3A