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请问USB分线器接电源后，只有电源供电，还是连的电脑也供电？

2025-03-16 06:36:34

推荐回答（1个）

回答1：

只要不短路都不会造成主板供电模块损坏
usb每个输出口提供的最大输出电流是500mA
最大功率就是 5V*500mA=2.5W
大功率的usb设备不会烧主板，只是USB设备不能够正常运行而已
只要有5V的外部电源
电源供电+电脑供电

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