1. Supports USB V1.1/V2.0 2. Built-in USB2.0-to-IDE interface Controller wuth general IDE interface & bulk-only transfer of USB mass storage class support upto UDMA66 for storage device. 3. Easy installation 4. Cooling fan (8CM ) 5. With AC 100/240V to DC 5V/12V power 6. Aluminum made case. 7. Plug & Play with Win2000/ME/XP/,win98 with driver 8. Supports Mac OS9.1/Mac OS X 9. With one button file backup function