Patent ID: 7761647

Claim:
A storage device with automatic interface-switching function comprising: a first interface connector comprising a first pin for transmitting a first voltage; a hard disk for storing data; a second interface connector coupled to the hard disk wherein the second interface is different from the first interface; a first regulator comprising: a first end coupled to the first pin of the first interface connector; a second end coupled to a first power; and a third end for outputting a second power when the first end of the first regulator receives the first voltage wherein the first regulator converts the first power into the second power; and a first interface/second interface converting controller comprising: a power end coupled to the third end of the first regulator for receiving the second power; a first end coupled to the first interface connector; and a second end coupled to the second interface connector; wherein the second end of the first interface/second interface converting controller is high impedance when the power end of the first interface/second interface converting controller does not receive the second power; wherein the first interface/second interface converting controller converts first interface data into second interface data.