Great for 2015 MacBook Pro/Retina. I put in a 256 micro card to add to my hard drive to store music and pictures from iTunes and photos. (Go to the program settings and change the directory to point to it). The only thing I have a problem with is that I keep getting the "Disk not ejected properly" error message. At first they weren't, and after several updates, they appeared. It annoys me every morning when I open my computer to scroll through 20 of them.
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