USB 2 Speeds on intel iMac

Discussion in 'iMac' started by Rychiar, Dec 4, 2008.

  1. Rychiar macrumors 6502


    May 16, 2006
    Waterbury, CT
    okay i have a 24" intel imac from 2 years ago and it has USB2 ports on the back right, well if i plug in a flash drive and take files from the drive to the computers they transfer at USB2 speeds. But when i go the other day and copy from the mac to the USB drive it's slow as hell. like USB1 or worse speeds. I can't figure out why. It's not like that on my PC at work which has similar specs to the imac. Anyway know why the USB up would be so slow?:confused:
  2. covertsurfer macrumors 6502a

    Jan 18, 2007
    I have my flash drive plugged in the back and it is transferring slowly, 350mb took about 8 minutes.

    This can't be right?
  3. StealthRider macrumors 65816


    Jan 23, 2002
    Yokosuka, Japan
    Are you copying off of an external hard drive or something similar? Or are you doing something CPU-intensive at the same time? USB requires a fair bit of processor overhead.

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