1.SupportUSB V1.1/V2.0 2.Have the inbuilt USB 2.0 switchover of IDE interface (compatible with univesal IDE interface to switch USB data for supportting UDMA66 memory) 3.Almost completely made of aluminium,simple design 4.Easy to install,dispense with installation tool patible with AC100/240V TO DC 5V/12V power supply 6.USB 2.0 multi card reader 7.Three USB2.0 ports