OWC Complete DIY Hard Drive Upgrade Kit
only $49.99 $34.74 You Save $15.25

OWC Complete DIY Hard Drive Upgrade Kit

for 27-inch iMac (Late 2012 - Early 2019) models


Mfr P/N: DIYIMACHDD12 OWC SKU: OWCDIYIMACHDD12

Highlights

  • Required for any drive installed into the main drive bay
  • Eliminate fan noise and maintain correct system fan control when upgrading 2012 - 2019 iMac 27" models
  • The only iMac HDD upgrade option on the market certified to pass the Apple Hardware Test
  • Fixes firmware incompatibility issues with third party hard drives
  • Engineered in-house and backed by OWC's award-winning customer support
  • 1 Year OWC Limited Warranty
  • Before attempting to perform this installation, please watch the OWC Install Video corresponding to your machine in its entirety to determine your ability to perform this complex upgrade.
availabilityShips in 8 Days
$49.99
$34.74
You Save $15.25
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Available iMac Kits

27" & 21.5" iMac (2011)

Complete Hard Drive Upgrade Kit
arrow up Complete Hard Drive Upgrade Kit $49.99$37.99 in stockIn Stock: Ships Same Day!
Thermal Sensor Only
arrow up Thermal Sensor Only $44.99$34.99 in stockIn Stock: Ships Same Day!

27" & 21.5" iMac (Late 2009 - Mid 2010)

Complete Hard Drive Upgrade Kit
arrow up Complete Hard Drive Upgrade Kit $49.99$38.99 in stockIn Stock: Ships Same Day!
Thermal Sensor Only
arrow up Thermal Sensor Only $44.99$36.99 in stockIn Stock: Ships Same Day!

27" iMac (Late 2012 - Early 2019)

Complete Hard Drive Upgrade Kit
arrow up Complete Hard Drive Upgrade Kit $49.99$34.74 in stockShips in 8 Days
Thermal Sensor Only
arrow up Thermal Sensor Only $44.99$37.99 in stockShips in 8 Days

Improve Performance and Capacity. Upgrade Your iMac with Confidence.

Improve Performance and Capacity. Upgrade Your iMac with Confidence. OWC's in-line solution is the only hardware digital thermal sensor on the market allowing a third-party SATA drive to be installed in your iMac. A convenient, plug-and-play cable, the In-line Digital Thermal Sensor eliminates fan noise and maintains proper system fan control through the iMac's System Management Controller. This innovative device is designed specifically for the iMac, requires no software hacks and ensures compatibility with Apple's built-in diagnostic processes.
Replace your iMac's original hard drive with a 3.5-inch SATA hard drive or a lighting fast 2.5-inch SATA SSD with a NewerTech AdaptaDrive for dramatic upgrades in storage capacity or data speed while maintaining the original system's fan and diagnostic performance.

Already have the tools?

Have OWC Upgrade Your iMac

If you are not fully confident in your ability to upgrade the drive in your iMac after watching the OWC Install Video, let OWC upgrade your iMac! Our certified technicians will expertly upgrade your system and ship it back to you – It's the easiest way to upgrade your Mac.

IncludesIncludes

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  • (1) OWC In-line Digital Thermal Sensor Cable
  • (2) Suction Cups (for outer glass removal)
  • (1) OWC Torx T8S Driver
  • (1) OWC Torx T10S Driver
  • (1) NewerTech Pry Tool
  • (1) OWC Microfiber Pro Cleaning Cloth
  • (1) OWC Pick (for screen separation)
  • (1) Set of adhesive strips (for screen re-attachment)
  • 1 Year OWC Limited Warranty

This kit contains consumable and/or one time use components and therefore is not covered by any warranty. If you have any concerns about your ability to perform the upgrade, you can return the unopened kit for a refund. This kit includes cable and mounting set only. iMac, tools, suction cups, and microfiber cloth not included. Already have the tools? Then purchase just the OWC In-line Digital Thermal Sensor Cable Bundle.

    Country of Origin

    • China

    TAA Compliance

    • No

    Compatibility & Installation VideosCompatibility & Installation Videos

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    iMac (Retina 5K, 27-inch, Early 2019)
    iMac (Retina 5K, 27-inch, Early 2019)
    Early 2019
    Model ID: iMac19,1
    3.7GHz & 3.1GHz & 3.0GHz Core i5 & 3.6GHz Core i9
    Detailed SpecsInstall Videos
    iMac (Retina 5K, 27-inch, Mid 2017)
    iMac (Retina 5K, 27-inch, Mid 2017)
    Mid 2017
    Model ID: iMac18,3
    3.8GHz & 3.5GHz & 3.4GHz Core i5 & 4.2GHz Core i7
    Detailed SpecsInstall Videos
    iMac (Retina 5K, 27-inch, Late 2015)
    iMac (Retina 5K, 27-inch, Late 2015)
    Late 2015
    Model ID: iMac17,1
    3.2GHz & 3.3GHz Core i5 & 4.0GHz Core i7
    Detailed SpecsInstall Videos
    iMac (Retina 5K, 27-inch, Mid 2015)
    iMac (Retina 5K, 27-inch, Mid 2015)
    Mid 2015
    Model ID: iMac15,1
    3.3GHz Core i5
    Detailed SpecsInstall Videos
    iMac (Retina 5K, 27-inch, Late 2014)
    iMac (Retina 5K, 27-inch, Late 2014)
    Late 2014
    Model ID: iMac15,1
    3.5GHz Core i5 & 4.0GHz Core i7
    Detailed SpecsInstall Videos
    iMac (27-inch, Late 2013)
    iMac (27-inch, Late 2013)
    Late 2013
    Model ID: iMac14,2
    3.4GHz & 3.2GHz Core i5 & 3.5GHz Core i7
    Detailed SpecsInstall Videos
    iMac (27-inch, Late 2012)
    iMac (27-inch, Late 2012)
    Late 2012
    Model ID: iMac13,2
    2.9GHz & 3.2GHz Core i5 & 3.4GHz Core i7
    Detailed SpecsInstall Videos
    4.85 out of 5

    339 out of 360 (94%) reviewers would recommend this product

    Write a Review
    90%
    8%
    1%
    1%
    1%

    Parfait

    Commande très facile sur le site et envoie rapide Le matériel fourni pour le remplacement du disque dur de mon macOS était parfait. Ça été très rapide pour exécuter le remplacement. Bonne qualité

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer2645867532, 
    Mar, 11 2025 
    • Reviewer:Reviewer2645867532
    Response from OWC, Support

    Thank you so much for this fantastic feedback! We are delighted that you found our site easy to use and that your order was shipped quickly. It is great to hear that the hardware for your hard drive replacement met your expectations perfectly and that everything went smoothly during installation. Your satisfaction is our priority, and we are delighted to know that you had a great experience with us! -------------------------------------------------- Merci beaucoup pour ce fantastique retour ! Nous sommes ravis que vous ayez trouvé notre site facile à utiliser et que votre commande ait été expédiée rapidement. C'est génial d'entendre que le matériel pour le remplacement de votre disque dur a parfaitement répondu à vos attentes et que tout s'est bien déroulé lors de l'installation. Votre satisfaction est notre priorité, et nous sommes ravis de savoir que vous avez eu une excellente expérience avec nous !


    as advertised

    I've been a longtime OWC customer and have bought everything from SSDs, external enclosures, cables, etc and their products have always been on point. I recently got my hands on a used 2012 iMac and the first thing I wanted to do was upgrade the spinning HDD to an SSD. this kit had literally everything I needed to upgrade the original HDD and while I was in there I went ahead and gate the machine a good cleaning with an air duster and decided at the last minute to upgrade the blade SSD as well. with the SSD upgrades and maxing out the RAM @ 32GB, this machine has a new life. thanks OWC!

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer829845482, 
    Jan, 28 2025 
    • Reviewer:Reviewer829845482
    Response from OWC, Support

    Wow, thank you so much for your fantastic review! We're thrilled to hear that you've been a longtime OWC customer and that our products have consistently met your needs. It’s awesome that you tackled the upgrade on your 2012 iMac and took the time to clean it up as well! Upgrading to SSD and maxing out the RAM is such a smart way to breathe new life into your machine. We’re so glad that our kit had everything you needed to make it happen. Your support means the world to us, and we can't wait to see what you choose next!


    Great Exprience

    As usual great experience using OWC. Good selection, easy web site to navigate and prompt delivery.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer2141642837, 
    Sep, 18 2024 
    • Reviewer:Reviewer2141642837
    Response from OWC, Support

    Wow, thank you so much for your fantastic review! We're thrilled to hear that you had a great experience with OWC! It’s wonderful to know you found our selection extensive, the website easy to navigate, and that your delivery was prompt. We appreciate your support and can’t wait to serve you again!


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