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What is a powered USB 3.0 hub?

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What is a powered USB 3.0 hub?

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Most USB hubs can just draw current from the computer itself. Keep in mind that a computer's USB 2.0 port can normally supply only 5V @ 500mA so if you try to draw more current than that you will probably need the power supply even if your hub is USB 3.0 .Feb 22, 2017');})();(function(){window.jsl.dh('_yCuKYLTuKbyV0PEP-sWLMA39','
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Because a powered hub uses mains power, it can give every device connected to it the maximum voltage that USB allows. So, not only can it run more devices than an unpowered hub, it can do so at full power, without any drops in performance.

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