At 08:18 PM 12/5/2011, you wrote:
>To take advantage of low cost USB style power supplies, I did a product
>that uses an USB mini B connector as the power input. No data goes across
>the USB bus. I can find low cost A to mini-B cables out to about 10 feet.
>But, of course, I have a customer that wants to put the wall mount power
>supply 30 feet away. He doesn't like stringing USB extension cords. So...
>Anyone know of a 30 foot USB power cable (no data lines required, just
>ground and +5VDC with an A connector at one end and a mini-B at the
>other)?
>
>THANKS!
>
>Harold

You can get active '10m'  extension cables (A plug to A socket) for around
$10-$15.. which could work for you if you don't mind adapting to the mini-B
and putting up with a bit of current draw from the unused circuitry.

--=20
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