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![USB voltage and amps - All About Circuits Forum]()
forum.allaboutcircuits.comLow-power devices draw at most 1 unit load, with minimum operating voltage of 4.4 V in USB 2.0, and 4 V in USB 3.0. High-power devices draw the maximum ...瀏覽：1159
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日期：2025-05-24
Low-power devices draw at most 1 unit load, with minimum operating voltage of 4.4 V in USB 2.0, and 4 V in USB 3.0. High-power devices draw the maximum ......
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