Looking for a drive that works with the Samsung Galaxy S3 without a powered hub

Hello, I am looking for a portable hdd to use with my Samsung Galaxy S3. I purchased another hdd and found out that not just any hdd will work with a cell phone as they have certain power requirements. I read somewhere that the S3 only offers 3.3 or 3.5 volts of power. 

You would think it would be a simple solution of just looking on the back of the drives to see which ones require less power. However I don’t want to make another mistake and purchase another hdd that isn’t compatable with my phone.

So here is my two part question: Does anyone know of a portable hdd that works with a S3, that doesn’t require a separate powered usb hub? Or if not, do you know of any that will fit w/in my power requirements of 3.5 AC volts?

As you might have been able to tell, I don’t know a whole lot about external drives, so please be specific if you have any suggestions. If you need any other info, please ask, as I am unsure what to provide.

Thank you for your time.

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Not enough juice to power any passport drive dude

maybe a powered USB drive

you can also use a USB memory

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