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Seems like it might be handy to travel with a tiny "USB sanitizer" dongle that simply passes through power and not data. Does such a thing exist?

Edit: not quite a dongle, but something like http://amazon.com/dp/B009W34XMM should fit the bill, no?

Edit 2: http://amazon.com/dp/B0042LF23I looks exactly right, although build quality appears to be an issue.

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That would be trickier with Apple's proprietary adapter since the pins are dynamic.

I don't understand. As along as the extension passes power through, it shouldn't matter if the other end of the cable you plug into them is dock or lightning connector, right? The reviews seem to indicate as much, since people report success charging iPads with them.

Ah, I thought you meant a pass through connecter you would plug into your phone.

Yes - it is called the "apple 12w usb power adapter" and costs $19 ;-)

Of course if you can use your own brick there is no issue. But there are times when all I have easy access to is a random USB port, and not wall power.

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