Powered USB hub and external hard drive

Discussion in 'Mac Accessories' started by lazyn, Nov 8, 2012.

  1. lazyn macrumors newbie

    Joined:
    Nov 8, 2012
    #1
    Hello,
    I've just bought a powered USB hub for a MacBook. I'd like to use two external HD (one of which is just used for storage) and I was wondering if I had to power these two HD.
    I don't want to do anything stupid and kill a HD!
    Thanks.
     
  2. tersono macrumors 68000

    tersono

    Joined:
    Jan 18, 2005
    Location:
    UK
    #2
    Depends on the HDs and, to a degree, the hub you've bought.

    However, you won't do any damage - if there's not enough power, they simply won't mount...
     
  3. zObsidian macrumors member

    Joined:
    Nov 25, 2010
    #3
    Every USB hub that I have seen are powered (supplies power to the devices you plug into it). You might be able to check the max amount of power it supplies by checking for any wattage marks on the hub or power adapter and match it with what the hard drive power requirements are.

    Generally speaking though, most hubs are designed to provide enough power to each individual device so it should work fine.
     
  4. lazyn thread starter macrumors newbie

    Joined:
    Nov 8, 2012
    #4
    Thanks for the replies. I will check that.

    That's the opposite I'm afraid of. Would too much current do any damage?
     
  5. blevins321 macrumors 68030

    Joined:
    Dec 24, 2010
    Location:
    Winnipeg, MB
    #5
    No, the device will only take as much as is required. Almost any powered (as in AC adapter to wall) would be able to power a couple bus powered drives no problem.
     

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