Crucial M550 SSD is very slow

Discussion in 'MacBook Pro' started by okizen, Aug 27, 2014.

  1. okizen, Aug 27, 2014
    Last edited: Aug 27, 2014

    okizen macrumors member

    Joined:
    Jan 21, 2012
    #1
    I have bought a 1TB Crucial M550 SSD and installed it as an external SSD but it seems so slow. I don't know whether the external USB3 case is crappy or whatever but SSDs are supposed to be faster than conventional drives but mine is very slow (I tried to transfer 90GB of data to the SSD but the estimated time was 3 days! Can anyone help to see if I've done anything wrong.
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Your 17" MBP only has USB 2.0, so you will only get USB 2.0 speeds (30-60MB/s) even if your enclosure is USB 3.0.

    If you want to experience SSD speeds, the only ways are:

    1. Install it internally in your MBP.

    2. Install it in a Thunderbolt enclosure and use it via the Thunderbolt port.

    USB isn't an option here, unless you're willing to buy a CalDigit Thunderbolt dock.
     
  3. okizen thread starter macrumors member

    Joined:
    Jan 21, 2012
    #3
    I forgot to mention that the SSD is connected to a CalDigit Thunderbolt dock. :eek:
     
  4. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #4
    Can you run a Blackmagic Disk Speed test on it?
     

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