Slow transfer speed from external HDD

Discussion in 'MacBook Pro' started by alarustic, Dec 14, 2016.

  1. alarustic macrumors newbie

    Joined:
    Dec 23, 2012
    #1
    Hi,

    I have a new 15" MBP with Touch Bar. I bought a Samsung T3 as external storage, it can be seen here.

    Basically it is an external SSD which has a usb-c socket, so I can use the regular cable that is was supplied with when working on my iMac, then attach a usb-c to usb-c cable to use it on my laptop.

    Problems is, transfer speeds are 4x higher on the iMac than the MBP. I don't understand why it would be slower?

    My other external hard drive is a Lacie Thunderbolt Rugged SSD drive. When hooked up to the laptop (using usb-c -> thunderbolt2 adapter) it is really fast. The reason I upgraded to the Samsung is because it is more compact and doesn't require a dongle, however the slow speed is a major issue.

    Thanks for your help.
     
  2. DarthBradicus macrumors member

    Joined:
    May 13, 2008
    Location:
    Pittsburgh, PA
    #2
    What USB-C cable are you using? Not all USB-C cables are created equal. Some may not support faster transfer speeds (especially ones that are designed primarily for charging, like Apple's).
     
  3. alarustic thread starter macrumors newbie

    Joined:
    Dec 23, 2012
    #3
    I didn't realise that. The cable I bought was this one, pretty cheap! I will try it with a better cable and see if that makes a difference.
     
  4. DarthBradicus macrumors member

    Joined:
    May 13, 2008
    Location:
    Pittsburgh, PA
    #4
    And it says in the description data transfer speed is 480 Mbps, which is USB 2.0.
     
  5. alarustic thread starter macrumors newbie

    Joined:
    Dec 23, 2012
    #5
    Thank you.
     

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