Can you tell me which USB keyboards or USB network adapters can wake a
Windows PC when the PC is turned off or which Windows PC keeps USB power on
when they are shut off?

We're not talking about standby, we're talking about OFF. Perhaps you are
thinking of the ability to turn on a MAC through the keyboard? I don't
think the above things are possible in Windows.

Marc Reinig
System Solutions

"Jim Turner" wrote in message
s.com...
On Tue, 09 Sep 2003 20:21:44 GMT, "Marc Reinig"
wrote:

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
ws.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


Get a self powered USB hub

Depends on the hub and the device. Devices, such as keyboards and network
adapters are powered so they can wake up the system even when it is
"off". .