单项选择题

A technician is testing a power supply for correct output voltages at the HDD power connector.
Which of the following voltages should the technician expect for a correctly working power supply?（）

A.6V
B.9V
C.12V
D.24V

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A technician is testing a power supply for correct output voltages at the HDD power connector. Which of the following voltages should the technician expect for a correctly working power supply?（）

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A technician is testing a power supply for correct output voltages at the HDD power connector.
Which of the following voltages should the technician expect for a correctly working power supply?（）