The output voltage is about 5v.
USB socket is a safe and power-saving universal socket with USB interface, including the socket body. It is a weak electronic product with an output voltage of about 5v.
The socket is a general socket with a safe and power-saving USB interface, is a weak electric product, including a socket body, the socket body is provided with a USB socket, the USB socket is provided with a linkage switch and a USB jack; A charger module is arranged in the socket body, and the input end of the charger module is in parallel with the output end of the linkage switch, the positive and negative terminals of the output end are connected with the positive and negative terminals of the power supply end of the USB jack, and the input end of the linkage switch is connected with the power supply.
The voltage is defined as 5 volts.
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However, because the front USB port is connected from the motherboard with a cable,
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The distance is long, the number of transfers is many, and the loss is large in the way.
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Therefore, the output power is slightly weak, and the stability and reliability are slightly poor
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The rear USB port is hardwired to the printed circuit board,
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Less loss on the way, more stable output.
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Computer usb output is DC 5v voltage, the current can generally go to 1a, some board usb can go to 2a, the household socket is used by the mains, AC 50hz, 220v, completely different