Hi!

> They could have a DC-DC converter built in to bump up the output
> voltage. They usually just have thicker (more copper, less voltage drop)
> power lines in the cable, though.

Read usb spec. They say that length *is* problem, due to speed-of-light.

                                                                Pavel
-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.


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