Re: SD card transfer speed to MacBook Pro
In article <280620131548045360%Don@noplace.net>,
Don Tuttle <Don@noplace.net> 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.
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
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