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Difference between external hard drive with power supply and without it

Last response: in Storage
December 25, 2012 3:58:48 PM

I would like to know if it's better to buy an external hard drive without power supply, the hd wil het power fromthe usb port.
a b ) Power supply
a c 317 G Storage
December 25, 2012 9:38:07 PM

Both work fine, but if you want a larger faster 3.5 inch drive you need an external power supply. The smaller 2.5 inch externals will work off USB power. Not really a better question, just one of what you need in terms of drive size and form factor.