On Dec 5, 2011, at 5:18 PM, Harold Hallikainen wrote:

>> To take advantage of low cost USB style power supplies

> I asked for a USB A male straight to USB mini-B male straight
> with a 30' cable in between. ... Price was $50 for onesies.


> They are A to A cables, 39 feet long, and cost about $30 (USD).

Those "low cost" supplies are starting to sound pretty expensive.
Although to be fair, "wire" is frequently depressingly costly, especially i=
f you step outside of "standardish" lengths and gauges.  (and a 30 foot pow=
er cable is pretty much outside of any common practice.)
For that kind of length your cheapest choices are going to be telco wiring,=
 cat5, and AC extension cords...  (AC is probably the best technical soluti=
on.  Higher voltage and lower current, available in a variety of colors.  L=
egal codes probably require that such cords are physically large, however. =
 There's no way you can count on the customer only putting a <10W load at t=
he far end.)

BillW

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