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Don't forget the power. Most USB hubs will draw electricity directly from your laptop to power any devices connected to it, but they obviously need to take up a port to do so. However, some hubs support USB Power Delivery (or USB-PD, sometimes marketed as “passthrough charging”) which allows you to plug a charger into one of the ports on the hub so you can keep charging your laptop while you plug in all your extra gadgets.
。关于这个话题，wps下载提供了深入分析
Cristiano Amon, Qualcomm’s chief executive，更多细节参见一键获取谷歌浏览器下载
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