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Old 01-14-2007, 05:32 AM   #1 (permalink)
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I have just wondering what that little box in the middle of a USB cable do.
For example:

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Old 01-14-2007, 01:02 PM   #2 (permalink)
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Some have them, some don't. I was always told it was to regulate volatge.
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Old 01-14-2007, 04:24 PM   #3 (permalink)
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I always thought that it limits voltage to the connected device. So I am guessing these USBs are not universal?

One of my friends has an USB cable without the litte box and with the little box and he said the little box increase tranfer rate. But I'm not sure.
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