patible with USB 2.0 and USB 1.1 standards,Windows98/2000/ME/XP,Mac compatible 2.High speed data transfer up to 480 Mbps 3. Suitable for all types of 3.5"IDE hard disk 4. High quality external power adapter with dual voltage 5V/12V input 5.Power switch for safe and convenience 6. The HDD mount on the bottom aluminum board. It is good for heat sink 7. Whole aluminum magnesium alloy material This produc to do USB2.0 and SATA or ESATA, AC input:100V to 240VDC output:+5V/2A, +12V/2A