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Author Topic: USB Amperage Rating?  (Read 1091 times)

Skylined

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USB Amperage Rating?
« on: May 15, 2006, 03:41:45 PM »

I cannot find the amperage rating of a USB port.

Is it 500mA?
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nemattoad

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Re: USB Amperage Rating?
« Reply #1 on: May 15, 2006, 04:08:28 PM »

Yes, it is 500mA. However, this assumes that you are on a powered USB hub or a port on the computer. If you are using a cheap un-powered USB hub, then the 500mA is shared between all the devices on the hub.
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Skylined

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Re: USB Amperage Rating?
« Reply #2 on: May 15, 2006, 04:32:30 PM »

Don't worry, I'm not using an USB port, but things that use USB. ;)
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