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Retina MacBook Pro 13" SD card reader
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Forum Regular
Join Date: Oct 2005
Location: Santa Cruz, CA
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I just ordered a Macbook Pro 13, with retina display. It of course has an SD slot that can take advantage of the higher capacity SDX cards. I was wondering if these cards can be used like an external hard drive, can they store any type of data?
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Grizzled Veteran
Join Date: Dec 2001
Location: Land of Enchantment
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Newegg has a 128GB one for $137 and of course they can store data, bits are bits. The question is, are they bootable?
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Moderator  Join Date: May 2001
Location: Hilbert space
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Of course you can store data on them. However, since not every computer has a built-in SD card reader, I find it more practical to own one of these.
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I don't suffer from insanity, I enjoy every minute of it.
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Moderator  Join Date: Apr 2000
Location: Gothenburg, Sweden
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Originally Posted by jmiddel 
Newegg has a 128GB one for $137 and of course they can store data, bits are bits. The question is, are they bootable?
In theory, yes - the Raspberry Pi relies on booting from an SD card. Whether you can actually boot from the one in your computer depends on how it is attached and whether the EFI supports all the drivers required. The one in my iMac is over USB and probably works to boot from, but I know many of them are connected straight over PCIe (such as the one in the HP laptop I'm writing this on). For that you would probably need a special driver.
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The current Mac Pro is the most out-of-date Mac since the Macintosh Portable
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Originally Posted by P
but I know many of them are connected straight over PCIe (such as the one in the HP laptop I'm writing this on).
Wow, I'm surprised anyone bothers. I assumed everyone would do it over USB2/3.
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Moderator Join Date: Apr 2000
Location: Gothenburg, Sweden
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HP has connected them over PCIe for some time now. I suspect that they did this for use with ReadyBoost. USB 3.0 with UAS might make the speed difference irrelevant, but USB 2.0 with BOT is not a good storage protocol. It will be very interesting to see what happens with storage connections over time - SATA Express is an interesting development.
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The current Mac Pro is the most out-of-date Mac since the Macintosh Portable
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