are the Retina MacBook Pro USB speeds supposed to be different?

Discussion in 'MacBook Pro' started by Advil, Aug 15, 2015.

  1. Advil macrumors 6502a

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    #1

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  2. brand macrumors 601

    brand

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    #2
    mA is not a measurement of USB speed or data transfer speed.
     
  3. JackieInCo macrumors 601

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    #3
    I remember with the first few MacBook Pros that I owned, it was always recommended to use a certain port for portable drives because one generally supplied more power than the other.
     
  4. Significant1 macrumors 6502

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    Dec 20, 2014
    #4
    Thas is normal/expected. Only the first device requesting extra power, will get it, the rest will continue with normal power. Read all the details in Apple's documentation about usb power here:
    https://support.apple.com/en-us/HT204377
     
  5. BoneDaddy Suspended

    BoneDaddy

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    Jan 8, 2015
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    #5
    I also have a question concerning USB 3.0

    I have a mid 2014 13" rMBP. Why, when I look in "about this mac", does it say they are both 500mah? I thought that was USB 2.0?
     
  6. BoneDaddy Suspended

    BoneDaddy

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