embodiments of the subject innovation is the operating mode switch according to the user on the external switch operation USB devices that may be, relates to a USB gender and a USB cable, in a USB device, a body portion, disposed in the interior parts of the body circuit board, one end circuit disposed and a circuit board electrically connected to the 1USB terminal of the circuit board , disposed on the other end of the circuit board it is placed on the 2USB terminal, and a circuit board connected to the circuit and the electrical circuit board is connected to a part of the circuit of the circuit board in accordance with the state of the electrical or including at least one or more external switches to block can provide a USB device. ;
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