Specification: * Portable design, hot plugs and play * Transfer speed: up to 480mbps * Compatible for hard disk from 20gb up to 200gb * Be available for WINDOWS98SE/ME/2000/2003/XP/MACOS8.60 & later edition * No driver required except Windows98SE * Active LED to indicate power and data access * aluminum magnesium alloy body surface * No external power charger needed except for Sata interface.