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Unverified85% confidenceTradeoffTime unknown

USB口总输出功率有限，三口同时使用时单口充电速度会明显下降，只适合手机、耳机等小功率设备慢充

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UnverifiedUSB口输出功率较低，仅能满足手机、耳机等小功率设备慢速充电，不支持快充协议93% similar Unverified带USB口可直接给手机等设备充电，减少携带充电头数量，但USB口输出功率有限，不适合需要大功率快充的场景86% similar Unverified体积小巧、集成USB-C和USB-A口，省去了额外携带充电头的需要，但三个USB口同时使用时会分流，单口充电速度会明显下降86% similar UnverifiedUSB口输出功率有限，给手机慢充尚可，但不适合给笔记本电脑或大功率设备通过USB供电86% similar UnverifiedUSB-A口仅支持较低功率输出，主要用于给耳机、手环等小功率设备补电，不适合作为主要快充口使用86% similar

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