![]() ![]() Using an unpowered hub with a high-voltage device means you’re drawing power away from the computer itself, which can cause it to underperform. As computer USB ports produce small amounts of current, they are best used to power devices that need only low voltages, such as: Unpowered hubs draw power from the USB port they’re plugged into. ![]() ![]() So, not only can it run more devices than an unpowered hub, it can do so at full power, without any drops in performance. devices that operate on higher voltages, such as:Īs this guide explains, electrical devices vary in the amount of power they need to run or charge.īecause a powered hub uses mains power, it can give every device connected to it the maximum voltage that USB allows.You’d use a powered USB hub if you needed to run: This short guide explains the difference, to help you understand which one you need. Some USB hubs are powered, others are unpowered. It plugs into your computer and lets you connect more devices than your existing USB ports allow. A USB hub is like an extension lead for USB devices. ![]()
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December 2022
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