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  1. #1

    Member Since
    Nov 03, 2007
    macbook 2.0ghz santa rosa
    usb power output
    I am looking for a good portable harddrive that does not require an external power supply and one of the ones I am looking at says it needs an output of 5v on the usb port. I have a macbook, how can I tell how much my macbook is outputting on its usb port?

  2. #2

    eric's Avatar
    Member Since
    Nov 04, 2006
    twin cities, mn, usa
    if it is a standard 2.5 inch drive (not the larger 3.5 inch found in most desktops) you should have no issues. i've got a couple of these and even though they come with 'double ended' usb cables so you can use more than one usb port for additional power, i don't need to do this for them to work properly.

    do you have a link to the one you are looking at?
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