Since the hub itself is a USB device, and the hub will not be enumerated by
the powered off laptop, the downstream ports should remain unpowered.

Marc Reinig
System Solutions

"Jim Turner" wrote in message
s.com...
On Tue, 9 Sep 2003 17:24:05 +0200, "andrea rossi"
wrote:

Is there something to use to give energy to USB devices?

For example if I want to use my USB calculator when my notebook is off,
there's a device (for example with battery) to give energy?

Thanks


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