Are USB connectors standard?


Active Member
I have just bought an iRiver H340. It can be charged using a USB connector. I also have a Garmin Etrex GPS, which came with an in car power supply with exactly the same USB connector.

My question is: can I use this to charge my iRiver? The voltage is the same (5V) for both, and I would assume USB connectors use a standard protocol so polarity wouldn't be a problem, but wondered whether anyone out there knew for sure?


I've never had a problem switching and swapping between a variety of proprietry USB cables, so I imagine they are standard.


yeah, if the voltage is the same, it should be no problem. especially if its the "exactly the same".


Active Member
Well I've tried it, and it hasn't fried my DAP! The bad news is that it thinks it's connected to a computer so switches to dumb external hard drive mode and so I can't play it. Still, it's always useful to have an alternative method of charging the battery.

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