Model No.：U25D Secure：――Safe data transfer within the HDD Speedy：―― High speed with USB2.0 interface Fashionable：――Professional products with the latest fashion Product description：Slim and compact aluminum housing, it is easy and convenient to carry Big PCB design for good protection design of hard disk　Special back hole design for best heat dissipation USB2.0 interfaces with transfer rate reaching 480Mbpscompatible for PC, notebook and Mac OS computers　no software and drivers needed(except of Windows98SE)hard disk support up to 100GB power supply: USB bus power: +5V 500mA external power: +5V 1A（MAX）packing contents： 1，2.5" U25D enclosure 2，leather bag 3，USB2.0 cable 4，USB-DC JACK extra power cable 5，user manual 6，driver CD