AWG(美国线规)
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标准化的线径系统,数字越小表示线材越粗,电力传输性能越好。
USB线缆使用28-20 AWG导体。较粗的线材(较低AWG)能够承载更大电流且电压降更小。20 AWG的USB-C线缆可以提供5A电流(100W+),而28 AWG线缆在15W以上可能出现问题。购买充电线缆时请检查AWG规格。