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  1. #1

    Member Since
    May 22, 2009
    Installing eSATA on my imac 27

    I came across an online tutorial on modifying your iMac 27 to have an eSata port. I don't recall where I found the tutorial but I would like to have this done for my iMac.

    I purchased my iMac27 in december of 2009. How do I find out if I can run esata port? Also, are there any videos on this esata mod? I know OWC, does this as a service but I can't ship my computer to them because I use it daily for work.

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    As far as I know, you can not add an eSATA port to your model iMac 27".

    This quote was taken from the Apple Discussion Forums:

    The only option for connecting ESATA to any iMac is if you have mid 2010 27" iMac. OWC provides a service for adding a ESATA port however they only do it on the mid 2010 27" iMacs, I just confirmed it. They don't sell a do-it-yourself kit, one has to send their iMac to them. If you are at all interested you will find it on their home page at Performance Upgrades; FireWire USB SATA Storage; Memory, more at OWC
    Notice that your model has to be a Mid 2010 27" iMac. If you need more info on this, I suggest contacting the folks at OWC directly. They have an 800 number for customer support and information.

  3. #3

    Member Since
    Jan 08, 2012
    esata mod for imac
    FYI for anyone else who comes along here planning to make the mod via OWC or try it on their own.

    I found some detail which would explain why OWC isn't providing eSata modifications for late model 2009 iMacs:

    How To Add An eSATA Port To An Intel iMac – @SFoskett – Stephen Foskett, Pack Rat

    According to this, the 2009 model only has 2 internal eSata ports, 2010+ has a third for internal expansion. The guy in the blog above had an older 2009 and sacrificed his DVD for the connection. (and had to unsolder it)

    Unfortunately I'm not willing to do that, so no external eSata for me.. Oh well..

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