At 11:50 PM -0400 10/23/08, Charles Davis posted:
> On Oct 23, 2008, at 8:23 PM, Steve R wrote:
>
>> I've googled galore and not found an answer. Maybe the simplest way
>> to ask is, if I am using a USB hub for only one device, does the USB
>> hub act as a pass-through cable extender so that it need not be
>> powered? Is there enough power coming from the internal USB port to
>> continue through the hub to the USB device,
>
> possibly, but what is supposed to tell anything else plugged into the
> hub that it's NOT the one wanted, and to not draw any power?
Is a USB hub with unpowered devices like lamps plugged into a power
strip (USB hub) that is plugged into a wall receptacle (USB port)?
The cords (cables) are always powered regardless of whether the lamp
(device) is turned on?
Steve R
--
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