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Thread: SD Card Serial Number - CID

  1. #1


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    SD Card Serial Number - CID
    Hi,

    I have a mid-2011 iMac with a built in SD card slot that is running High Sierra 10.13.6.

    I'm trying to read the unique serial number of a SD card (not the UUID for avoidance of doubt). DiskUtility isn't showing what I need and I've tried various Terminal commands without success.

    Does anyone know if this is possible and what program or command line should I use?

    Thanks.

  2. #2

    ferrarr's Avatar
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    Your Mac's Specs
    L2014 Mac mini macOS 10.13, iPhone 8+ iOS 11, 12.9" iPad Pro 1 iOS 11,  Pencil 1
    Have you tried going into System Information, which is in your Utilities folder? It may be listed under USB, I just don't have an SD card handy to test with?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  3. #3


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    Quote Originally Posted by ferrarr View Post
    Have you tried going into System Information, which is in your Utilities folder? It may be listed under USB, I just don't have an SD card handy to test with?
    Hi. Yes I had already tried that but no luck.

    The card reader is connected directly to the motherboard via PCIe so it should be able to send/receive the commands needed to extract this info.

    Anything connected via USB isn't able to process these commands, whatever they maybe!

  4. #4

    pm-r's Avatar
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    Does anyone know if this is possible and what program or command line should I use?

    It seems that reading that data depends on a few things actually working:
    See: https://www.cameramemoryspeed.com/sd...ernal-numbers/
    One way to read the CID is to use a laptop with an SD card slot. Card readers in laptops are usually connected directly through the PCI bus (or IDE bus). This will not work through a USB card reader because the command to retrieve the card information is intercepted and not understood by card readers. Not all computers with built-in card slots will work, some internal card readers are connected through a USB bus.
    For some other suggestions, try some of the hits from here:
    mac how to read the unique serial number of a SD card
    https://www.bing.com/search?q=mac+ho...APMCS1&PC=APMC

    Who knew it would be so quirky to access the info. Cheese…

    Or try using a strong magnifying glass etc.
    https://www.techwalla.com/articles/h...-of-an-sd-card



    - Patrick
    ======

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