Which SD Card Speed for MBPr Early 2013

Discussion in 'MacBook Pro' started by timjamesbrennan, Apr 27, 2016.

  1. timjamesbrennan macrumors newbie

    Jun 10, 2009
    I want a SD card that can transfer fast to my MBP using built in slot. I see that there are 280MB/s SD cards available. Can my built in SD card slot make use of all that speed? If not which speed is best to buy?
  2. JTToft macrumors 68040

    Apr 27, 2010
    Aarhus, Denmark
    You can look up the available speed on your machine by following the steps in question 4 here:

    If you don't mind, share your results please. I believe it should be USB 3 speeds.

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