Quote:
Originally Posted by Tandum
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I've one of those too , my notebook has only 2 x USB2 lots , so it's handy.
I can run up to 4 x self powered USB2 devices from the hub (or as many as 4 cable powered devices from it providing the total current draw is < 2.5A) or I can plug in the 220VAC - 5VDC adapter to run the devices if the total current drawn is > 0.5A (that's what comes from the input UBS2).
A 5VDC 2.0A voltage regulator chip driven by a 9VDC battery will do the same thing could be rigged up to provide a steady 5VDC 2A power suppy instead of needing to use the mains.