USB 3.0 and 2.0

Discussion in 'MacBook Air' started by onthecouchagain, Nov 13, 2012.

  1. macrumors 604

    onthecouchagain

    Joined:
    Mar 29, 2011
    #1
    Question: I have an old MacBook Air that has USB 2.0's... can I still buy an external hard drive that uses USB 3.0? The wires that come with the ext HD will still fit and work with my Mac?

    Yes? I'm a little confused by the "direction" of the backwards compatibility.

    Thanks in advance.
     
  2. macrumors regular

    Joined:
    Sep 16, 2012
    Location:
    Dubai
    #2
    You can do so only if the external harddrive is compatible with USB 2.0 as well as 3.0.

    If it only runs USB 3.0 it won't work with your MBA!
     
  3. macrumors 6502a

    Joined:
    Aug 5, 2008
    #3
    Yes it will work but at USB 2.0 speeds
     
  4. macrumors 604

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #4
    All USB 3.0 products are supposed to be backwards compatible with USB 2.0; there should be no problem using any USB 3.0 product with USB 2.0.
     
  5. thread starter macrumors 604

    onthecouchagain

    Joined:
    Mar 29, 2011
    #5
    Thanks, y'all.
     
  6. macrumors 68000

    KylePowers

    Joined:
    Mar 5, 2011
    #6
    http://en.wikipedia.org/wiki/USB_3.0
     

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