Internetworkers: http://www.ibiblio.org/internetworkers/

[Ian Meyer <ianmeyer AT gmail.com>]

there are two: the standard, car-lighter-looking 20mm power port, and  
another called "empower." most of the adapters have a 2-part  
assembly, with a male empower connector, and then a 20mm adapter that  
just slides over that, so with the one cord and adapter, you can plug  
into either kind of airplane power jack.

~ian

ps: here's what the empower connector looks like: http:// 
support.gateway.com/s/Mobile/peripher/6500687/6500687mvr4.shtml

On Nov 14, 2006, at 7:21 PM, Michael Czeiszperger wrote:

> On Nov 14, 2006, at 6:45 PM, Shea Tisdale wrote:
>
> > I've found many planes offering the 20mm (car cigarette lighter)
> > port under
> > the seats.  The apple connector and others available at area
> > computer stores
> > will power various laptops from that.
>
> It would be nice if one could know ahead of time what type of adapter
> to bring-- you'd think in this day an age there'd be some sort of
> standard.
>
> --Michael
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