If memory serves, "every other" hub must be powered via AC. So a usb connection on the PC will be
powered, but the first external hub after that shouldn't need to be, and the next will need to be,
and so on (up to 127 devices total - not hubs).

I'm wondering if the 2 ports on the PC work the same way - is it possible one is powered and the
other is not?

The following is just a theory - the port you plugged the hub into *may* be the # 2 port, (port 1 is
powered so port 2 doesn't need to be). If that's the case, then your hub would need to be powered.
To test this theory, try plugging the hub into the other USB port (#1), which should be the powered
one, in which case the external hub shouldn't need power. Clear as mud? I'm not a techie - what I'm
suggesting with regard to the internal usb hub may be nonsense, in which case both ports would have
power. Some kind soul please confirm or deny my theory!

Al Thompson

----- Original Message -----
From: "Brenda Dencer"
Subject: Re: [PCBUILD] PCBUILD Digest - 14 Jun 2002 to 15 Jun 2002 (#2002-167)


> I appreciate all the tips Will start on them in order after homework . I
> (duh) found the electrical cord for the hub (slap forehead).  But,
> wonder why USB hub requires electricity?  Is there a webpage that gives
> this type of info, kinda like 'wotis' for computer terms?
>
> Brenda

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