DIY Drive Upgrade Kits for Apple iMac

The right upgrades made easy by OWC. No software hacks, no fan revving, Plug and play Apple SMC and diagnostic compatible.
Replace your iMac’s stock 250GB, 500GB, 1TB, 2TB, or 3TB Apple factory HDDs with a modern drive now up to 18.0TB.

HDD & SSD Upgrade Kits for 27-inch & 21.5-inch iMac (2009 & 2010)

HDD & SSD Upgrade Kits for 27" & 21.5" iMac (2009 & 2010)

Model ID: iMac10,1; iMac11,1; iMac11,2; iMac11,3

Upgrade your iMac today

Upgrade or install a new drive up to 8.0TB!

    Options starting at just $33.99

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    HDD & SSD Upgrade Kits for 27-inch & 21.5-inch iMac (2011)

    HDD & SSD Upgrade Kits for 27" & 21.5" iMac (2011)

    Model ID: iMac12,1; iMac12.2

    Upgrade your iMac today

    Upgrade or install a new drive up to 8.0TB!

      Options starting at just $32.99

      View Options
      OWC HDD & SSD Upgrade Kits for 27-inch iMac (2012-2019)

      HDD & SSD Upgrade Kits for 27" iMac (2012-2019)

      Model ID: iMac19,1; iMac18,3; iMac17,1; iMac15,1; iMac14,2; iMac13,2

      Upgrade your iMac today

      Upgrade or install a new drive up to 18.0TB!

        Options starting at just $34.99

        View Options

        OWC HDD Upgrade Kits for iMac

        Includes all the tools you need to upgrade (or replace) the HDD in an iMac (2009 - 2019)

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        Install a new, high capacity 3.5-inch HDD up to 18.0TB

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        Replace the HDD in your iMac with a lightning fast 2.5-inch SSD (adapter required)

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        Thanks to OWC's innovative HDD Upgrade Kits, you can install a hard drive up to 18.0TB in your iMac. OWC's iMac HDD Upgrade Kits are the only solutions on the market to offer full compatibility with the digital thermal reporting in Apple's SMC.

        Unlike prior generations, iMacs from late 2009 to 2019 utilize digital reporting and even custom firmware for SMC drive temperature reporting. OWC's exclusive HDD Upgrade Kits include our custom digital monitor that "talks Apple SMC," maintaining proper temperature reporting and Apple Diagnostic compatibility, allowing you to replace the existing 3.5-inch HDD in your iMac with a new 3.5-inch SATA HDD of your choice of capacity up to 18.0TB!

        OWC In-line Thermal Sensor

        Engineered Specifically for Your iMac

        Designed and built by OWC, this is the only upgrade designed to interface with Apple’s SMC and maintain Apple diagnostics compatibility. No software hacks to maintain, no disabling of built in health functions. Our worry-free, plug-and-play solution the ensures the proper and accurate management of fan speed and cooling and all Apple diagnostic processes – just like a factory installation.

        OWC Internal SSD Add-In Kits for iMac

        Includes all the tools you need

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        Experience faster booting

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        Near instant application launches

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        Data transfer speeds up to 559MB/s

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        Add a blade-style SATA 6G Solid-State Drive to your hard drive only iMac (2012)1, or add a 2.5-inch SATA 6G or SATA 3G Solid-State Drive (sold separately) to your hard drive only iMac (2010 - 2012)! Experience faster booting, near instant application launches and data transfer speeds up to 559MB/s!

        OWC SSD Add-In Kits are designed specifically for each iMac.

        • Complete Install Kits include all cables, tools, and installation/mounting accessories.
        • Have your own tools? Choose just the cables and mounting kit, and get only what you need.
        SSD Add-In Kit for 27-inch iMac (2012)

        SSD Add-In Kits for 27-inch iMac (2012)

        Model ID: iMac13,2

        Complete Kits with SSD up to 2.0TB starting at $89.00

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        SSD Add-In Kit for 21.5-inch iMac (Late 2012 - Early 2013)

        SSD Add-In Kits for 21.5-in iMac (Late 2012 - Early 2013)

        Model ID: iMac13,1

        Complete Kits with SSD up to 2.0TB starting at $89.00

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        SSD Add-In Kit for 27-inch iMac (2011)

        SSD Add-In Kits for 27" iMac (2011)

        Model ID: iMac12,2

        Complete install kits include:

        • SATA 6Gb/s Data & Power Cable
        • Tools and Accessories

        Only $22.75

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        Have your own tools?

        • Mounting & Cables Kit

        Only $14.75

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        SSD Add-In Kit for 21.5-inch iMac (2011)

        SSD Add-In Kits for 21.5-inch iMac (2011)

        Model ID: iMac12,1

        Complete install kits include:

        • SATA 6Gb/s Data & Power Cables
        • Tools and Accessories

        Only $19.75

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        Have your own tools?

        • Mounting & Cables Kit

        Only $14.75

        Learn More »
        SSD Add-In Kit for 27-inch iMac (2010)

        SSD Add-In Kits for 27-inch iMac (2010)

        Model ID: iMac11,3

        Complete install kits include:

        • SATA 3Gb/s Data & Power Cables
        • Tools and Accessories

        Only $19.75

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        Have your own tools?

        • Mounting & Cables Kit

        Only $14.75

        Learn More »

        More Upgrades for iMac

        General Servicing Kit for all iMac (2007 & Later)

        As shown with tools and accessories.

        General Servicing Kit
        for All iMac (2007 & Later)

        Includes all the installation tools you'll need to service any Apple iMac produced from 2007 - 2020, plus adhesive strips to properly re-attach the screen on both 21.5-inch and 27-inch iMac models.

        Model ID: iMac7,1; iMac8,1; iMac9,1; iMac10,1; iMac11,1; iMac11,2; iMac11,3; iMac12,1; iMac12,2; iMac13,1; iMac13,2; iMac14,1; iMac14,2; iMac14,3; iMac14,4; iMac15,1; iMac16,1; iMac16,2; iMac17,1; iMac18,1; iMac18,2; iMac18,3; iMac19,1; iMac20,1; iMac20,2

        Only $24.75

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        OWC Memory Upgrades for iMac

        OWC Memory Upgrades for iMac – Up to 128GB!

        OWC Memory is specifically designed for your iMac and comes backed by an OWC Limited Lifetime Warranty.

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        3.5-inch SATA Hard Drives

        Upgrade Your iMac with up to 18.0TB of Storage!

        After selecting an OWC HDD Upgrade DIY Kit, select a new 3.5-inch HDD with up to 18.0TB of capacity!

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        FREE DIY Install Videos

        FREE DIY Install Videos

        Let OWC show you how to install hard drives, memory, optical drives, and more – FREE step-by-step installation videos take the mystery out of upgrading!

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        OWC Data Doubler

        Also available:

        OWC Data Doubler

        Add up to 2.0TB of additional internal storage by replacing your optical drive with a second Hard Drive or Solid-State Drive.

        Available for Mac mini, MacBook, and MacBook Pro!

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        1. Blade-style SSD add-in kits available for select iMac31,1 models. See product page for full compatibility details.