What is the difference between USB 2.0 and USB 3.0

Discussion in 'Mac Accessories' started by jusacruiser, May 11, 2011.

  1. jusacruiser macrumors 6502

    jusacruiser

    Joined:
    Mar 15, 2009
    Location:
    Atlanta, Georgia
    #1
    What is the difference between USB 2.0 and USB 3.0?

    I was shopping for a Western Digital backup drive and then after purchase, noticed that it just said "USB 2.0".

    Then online I noticed that there is a USB 2.0/3.0 version.

    Should I return my purchase of the USB 2.0 version......and get a USB 2.0/3.0 version instead? Does it matter?

    Thanks! :)
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    USB 3.0 is roughly 10 times faster but Macs only support USB 2.0. If the price is the same, then I would buy exchange it for USB 3.0 version.
     
  3. jusacruiser thread starter macrumors 6502

    jusacruiser

    Joined:
    Mar 15, 2009
    Location:
    Atlanta, Georgia
    #3
    Ok, I will go back to the store and do some comparing. Thanks.
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    But know, that current Macs don't support USB 3.0. But Macs with a Thunderbolt port will eventually, when the correct adapters and drivers will be released. IF you have a Mac with Firewire 800, look into those HDDs with a FW800 port, as FW800 provides at least twice the speed of USB 2.0 and uses no CPU, as FW has its own chip on the logic board and USB 2.0 and USB 3.0 signals go through the CPU.

    [​IMG]
     

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