How many hours will it take to copy a 100GB folder on USB 2.0 external drive to MBA?

Discussion in 'MacBook Air' started by watermelonbook, Jun 29, 2014.

  1. watermelonbook macrumors regular

    Joined:
    Jan 31, 2014
    #1
    How many hours will it take to copy a 100GB folder
    on USB 2.0 external hard drive to my MacBook Air?
    (MBA has 256GB SSD with 170GB available)

    The 100GB folder contains mostly music, video,
    and photos.

    Thanks!
     
  2. Mac.User macrumors 6502

    Joined:
    Aug 25, 2013
    #2
    depends on number of files, file sizes, speed of SSD, Speed of the through put you get on the USB port, speed of the drive you are writing to.....
     
  3. Yakibomb macrumors 6502

    Yakibomb

    Joined:
    May 13, 2014
    Location:
    Cape Town
    #3
    Just leave it going over night, and hopefully it'll be done by the time you want to use your mac :p
     
  4. Boyd01 macrumors 68040

    Boyd01

    Joined:
    Feb 21, 2012
    Location:
    New Jersey Pine Barrens
    #4
    I have a few of the USB 2 WD MyPassport bus powered drives, also a bunch of older externally powered USB 2 drives. I have clocked them with read speeds of about 35MB/s.

    So do the math… it works out of 2.1GB/minute. It may take longer for a Finder copy due to overhead. Definitely should not take all night though. ;)
     
  5. Bruno09 macrumors 68020

    Joined:
    Aug 24, 2013
    Location:
    Far from here
    #5
    Expect 1GB per minute.

    100 GB ~ 1h 40mn
     
  6. watermelonbook thread starter macrumors regular

    Joined:
    Jan 31, 2014
    #6
    thanks!

    Turns out that it took less than an hour for the whole 100GB to be copied.
    (57 minutes to be exact)
     
  7. Boyd01 macrumors 68040

    Boyd01

    Joined:
    Feb 21, 2012
    Location:
    New Jersey Pine Barrens
    #7
    Cool - that is pretty close to what I estimated. :cool:
     

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