Re: SD card transfer speed to MacBook Pro

Discussion in 'Digital Photography' started by Kevin McMurtrie, Jun 29, 2013.

  1. In article <280620131548045360%>,
    Don Tuttle <> wrote:

    > I transferred 620 images (3900MB) from an SD card Class 6 (15MB/s) to a
    > mid-2012 MacBook Pro retina. The transfer took about 8 minutes, which
    > averaged about 8 MB/s, if my arithmetic is right.
    >
    > Does that result seem normal or slow? Is the transfer speed a function
    > of the card Class, the computer, or both? Would I do much better if I
    > used Class 10? Thanks.
    > Don


    The older Macs have the SD reader on the USB 2.0 bus so they never
    manage much speed.

    Newer Macs have the SD reader on a fast bus but some models have
    problems with the reader going dead when used at high speeds
    --
    I will not see posts from Google because I must filter them as spam
    Kevin McMurtrie, Jun 29, 2013
    #1
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