Have you ever been warned of "power surge at the Hub port"? What does this mean? This article will give you a detailed answer to this question and provide a solution.

USB device overload

When the working current of the USB device exceeds the power supply limit of the computer, the system will issue a "hub port surge" warning to protect the motherboard from damage.

The current total exceeds the standard.

The working current of USB port of notebook computer generally does not exceed 500 mA, and the actual limit may be lower. Therefore, when multiple devices are connected at the same time, the total current may exceed this limit.

survey the equipment

First, check whether the equipment is short-circuited or damaged, which may lead to abnormal increase of current. If there is something wrong with the equipment, it is recommended to replace or repair it.

Reduce the number of connections

Secondly, consider reducing the number of USB devices connected at the same time. If multiple devices must be connected, they can be staggered as far as possible to avoid simultaneous power supply.

Use external power supply

Finally, it is a good choice to use a hub with external power supply. In this way, the device can obtain power from the external power supply without occupying the USB power supply, which expands the application range of the device and protects the USB port.