Integer indicating the number of power cords which must be connected to the chassis, for all the components to operate.

整数代表必须连接到机盘上的电线数量，只有这个数量，所有组件才能操作。

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Because PlugBug World charges MacBook plus iPad or iPhone at the same time, you can purge the number of power cords and international converters you carry.

ENGADGET: PlugBug World brings global travel to the MacBook / USB charger