A system, comprising: a first USB interface comprising a first voltage pin and a first ID pin; a second USB interface comprising a second voltage pin and a second ID pin; a system power supply; a first power supply switch coupled to the first voltage pin and the system power supply, wherein the first power supply switch is configured to connect the first voltage pin to the system power supply when a power supply voltage is received at the first voltage pin or when an input oscillating signal is received at the first ID pin; a second power supply switch coupled to the second voltage pin and the system power supply, wherein the second power supply switch is configured to connect the second voltage pin to the system power supply when the power supply voltage is received at the second voltage pin or when the input oscillating signal is received at the second ID pin; the system further comprising: a voting and oscillator circuit coupled to the first ID pin, wherein the voting and oscillator circuit is configured to provide an output oscillating signal to the first ID pin when a standard supply voltage is received at the first voltage pin of the first USB interface; the voting and oscillator circuit being further coupled to the second ID pin, wherein the voting and oscillator circuit is configured to provide the output oscillating signal to the second ID pin when the standard supply voltage is received at the second voltage pin of the second USB interface; the voting and oscillator circuit being further configured, when the standard supply voltage is first received at the first voltage pin, to only send the output oscillating signal to the first ID pin, and when the standard supply voltage is first received at the second voltage pin, to only send the output oscillating signal to the second ID pin, and once the standard supply voltage is received and the output oscillating signal is provided to one of the first and second USB interfaces, the voting and oscillator circuit locks in so that the output oscillating signal is not sent to the other one of the first and second USB interfaces. a first USB interface comprising a first voltage pin and a first ID pin; a second USB interface comprising a second voltage pin and a second ID pin; a system power supply; a first power supply switch coupled to the first voltage pin and the system power supply, wherein the first power supply switch is configured to connect the first voltage pin to the system power supply when a power supply voltage is received at the first voltage pin or when an input oscillating signal is received at the first ID pin; a second power supply switch coupled to the second voltage pin and the system power supply, wherein the second power supply switch is configured to connect the second voltage pin to the system power supply when the power supply voltage is received at the second voltage pin or when the input oscillating signal is received at the second ID pin; the system further comprising: a voting and oscillator circuit coupled to the first ID pin, wherein the voting and oscillator circuit is configured to provide an output oscillating signal to the first ID pin when a standard supply voltage is received at the first voltage pin of the first USB interface; the voting and oscillator circuit being further coupled to the second ID pin, wherein the voting and oscillator circuit is configured to provide the output oscillating signal to the second ID pin when the standard supply voltage is received at the second voltage pin of the second USB interface; the voting and oscillator circuit being further configured, when the standard supply voltage is first received at the first voltage pin, to only send the output oscillating signal to the first ID pin, and when the standard supply voltage is first received at the second voltage pin, to only send the output oscillating signal to the second ID pin, and once the standard supply voltage is received and the output oscillating signal is provided to one of the first and second USB interfaces, the voting and oscillator circuit locks in so that the output oscillating signal is not sent to the other one of the first and second USB interfaces. a voting and oscillator circuit coupled to the first ID pin, wherein the voting and oscillator circuit is configured to provide an output oscillating signal to the first ID pin when a standard supply voltage is received at the first voltage pin of the first USB interface; the voting and oscillator circuit being further coupled to the second ID pin, wherein the voting and oscillator circuit is configured to provide the output oscillating signal to the second ID pin when the standard supply voltage is received at the second voltage pin of the second USB interface; the voting and oscillator circuit being further configured, when the standard supply voltage is first received at the first voltage pin, to only send the output oscillating signal to the first ID pin, and when the standard supply voltage is first received at the second voltage pin, to only send the output oscillating signal to the second ID pin, and once the standard supply voltage is received and the output oscillating signal is provided to one of the first and second USB interfaces, the voting and oscillator circuit locks in so that the output oscillating signal is not sent to the other one of the first and second USB interfaces.