... .External power supply can be use to AC90V-264V,47-63Hz. 1.IntroduceUSB2.0 to SATA/IDE cable be used to connect hard disk,CD-ROM ... ,DVD-ROM ,CD-RW,COMBO device,DVD-RW to computer with USB2.0 interface ... . 2.FeatureUSB 2.0 supports 480M data transfer rate and 52x ...