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需要多大的交换机？ 板子上只有POE座子 这个要怎么用？
@jugg POE需要外部供电模块，和树莓派POE模块是兼容的。 交换机提供超过15W的功率即可。
@george 和4B的这个 PI POE+HAT的通用的?
@jugg 是的！通用的。
