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Image for Crucial 8GB Kit (2 x 4GB) DDR3L-1333 SODIMM Memory for Mac from Crucial UK GBP Store Organization

Crucial 8GB Kit (2 x 4GB) DDR3L-1333 SODIMM Memory for Mac

CT3309323

  • Brand: Crucial
  • Form Factor: SODIMM
  • Total Capacity: 8GB Kit (4GBx2)
  • Warranty: Limited Lifetime
  • Specs: DDR3 PC3-10600 • CL=9 • Unbuffered • NON-ECC • DDR3-1333 • 1.35V • 512Meg x 64 • lead free • halogen free • for Mac
  • Series: Crucial
  • view all product details
    5 stars 42 reviews
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    • £76.79 inc. VAT*
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    This part is compatible! view all compatible parts

    iMac (21.5 and 27-inch, Mid 2011) iMac12,1/12,2

    Notes about your system:

    A 3.5" bracket is required to mount the SSD in your system. Our part number for the bracket is CTSSDCONVT.

    21.5" - 2.5GHz Intel Quad Core i5, 2.7GHz Intel Quad Core i5, and 2.8GHz Intel Quad Core i5
    27" - 2.7GHz Intel Quad Core i5, 3.1GHz Intel Quad Core i5, or 3.4GHz Intel Quad Core i7 processor.

    Your Apple iMac (21.5 and 27-inch, Mid 2011) iMac12,1/12,2

    system specs as shipped

    memory

    • Maximum Memory:32GB
    • Slots:4 (2 banks of 2)
    *Not to exceed manufacturer supported memory.
    what does this mean?
    Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.

    storage

    • Storage: Serial ATA support
    what does this mean?
    Storage drives -- hard drives and solid state drives -- are the permanent memory for the programs and documents on your computer.

    Crucial awards

    BizRate.com Circle of Excellence Stevie Award Silver Stevie Award Bronze

    we take care of our customers

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    you may also be interested in:

    Crucial 8GB Kit (2 x 4GB) DDR3L-1333 SODIMM Memory for Mac

    product information

    Amount of available storage on the module. If there are parenthesis shown – for example (2 x 4GB) – it indicates a kit of 2 or more identical modules is used to reach the Total Capacity.
    Number of modules. Memory can be installed as single modules or in kits comprised of 2 or more identical modules. Each module requires its own slot for installation.
    Product Specifications
    Brand Crucial
    Form Factor SODIMM
    Total Capacity 8GB Kit (4GBx2)
    Warranty Limited Lifetime
    Specs DDR3 PC3-10600 • CL=9 • Unbuffered • NON-ECC • DDR3-1333 • 1.35V • 512Meg x 64 • lead free • halogen free • for Mac
    Series Crucial
    ECC NON-ECC
    Module Qty 2
    Speed 1333 MT/S
    Tracer False
    Voltage 1.35V
    DIMM Type Unbuffered
    Bullet Features Increases system performance
    More information

    204-pin SODIMM for Mac


    In short, 204-pin small outline dual inline memory modules (SODIMMs) are the form factor used to provide DDR3 memory modules for notebook computers and other small form factor computing platforms.

    To use DDR3 memory, your system must have both a 204-pin SODIMM slot and a chipset that supports DDR3 memory. A DDR3 SODIMM will not fit into DDR2 or DDR memory sockets.

    SODIMMs are smaller and thinner than regular DIMMs, and the 204-pin SODIMM PCBs are always ~2.6 inches long and are usually around 1.18 inches high (though the heights can vary slightly). They consist of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The number of memory components on a 204-pin SODIMM's printed circuit board (PCB) can vary, but the PCB will always have 102 pins on the front and the back both, for a total of 204 pins. The gold pins on the bottom of the SODIMM provide the connection between the memory module and the memory socket.

    product reviews

    OID: 8DFD4445A5CA7304
    PR file path: /pwr/96v439cu/inline/07/27/8DFD4445A5CA7304-en_GB-1-reviews.html

    REVIEW SNAPSHOT®

    by PowerReviews
     
    4.8

    (based on 42 reviews)

    Ratings Distribution

    • 5 Stars

       

      (36)

    • 4 Stars

       

      (4)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    98%

    of respondents would recommend this to a friend.

    Pros

    • Easy to install (3)
    • Quick delivery (3)

    Cons

    No Cons

    Best Uses

    No Best Uses

    Most Liked Positive Review

     

    Much Faster Performance

    Installed the memory on my IMac 2011(2x4GB), leaving the two original 2x2gb blocks inside. System started up normally and recognised the upgrade. As I am a gamer, I loaded up an...Read complete review

    Installed the memory on my IMac 2011(2x4GB), leaving the two original 2x2gb blocks inside. System started up normally and recognised the upgrade. As I am a gamer, I loaded up an MMORPG and, at first, it seemed to have dropped framerate a little. However, after about ten minutes, I was able to tune up my graphics settings from a slightly customised "good", to a customised "ultra". I still had to turn shadows and lighting effects down a bit, but on 12GB this isn't bad. I went from having framerate spikes and instability at 4GB, to a really smooth performance.
    I cannot wait until I replace the original 2x2GB with some more of these 2x4GB blocks, up to a total of 16GB RAM, and find out how much more I can run!
    I nearly bought these from another retailer online, but I decided to find the supplier directly (here!) and spent less than I would have done otherwise.

    Cannot fault anything as my system is stable.

    VS

    Most Liked Negative Review

     

    Caused iMac to repeatedly crash

    My iMac had been operating perfectly, no matter how many programs I had open. I replaced the existing ram with the upgrade, moving the existing apple ram to what where then the two...Read complete review

    My iMac had been operating perfectly, no matter how many programs I had open. I replaced the existing ram with the upgrade, moving the existing apple ram to what where then the two empty slots. Immediately the iMac began crashing, regardless of what program's were open or how many were open. I swapped the slots the upgrade chips and existing chips were in (so the upgrades are now in what were the 2 originally empty slots. The iMac still crashes but less frequently than when the chips were the other way round. Whilst there is a noticeable performance speed increase, the system now seems fragile and the risk of lost work eg when editing movies is much greater.

    I will persevere for a little while longer, but most probably remove the upgrade and ask for my money back.

    Reviewed by 42 customers

    Displaying reviews 1-10

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    (1 of 1 customers found this review helpful)

     
    5.0

    Does exactly what it says on the tin

    By Mr S

    from Northampton

    Pros

    • Easy To Install
    • Quick Delivery
    • Works Well

    Cons

      Best Uses

      • Increase Mac Memory

      Product arrived in good condition, extremely easy to install and works well as expected

       
      4.0

      8GB KIT (4GBX2) upgrade for IMAC (21.5 ) MID 2011

      By Morty

      from Warrington

      Verified Reviewer

      Pros

      • Great Ram Inprovement

      Cons

      • None

      Best Uses

      • Ram Improvement

      Helpful Installation Advice - Better than Apple Provide

      (1 of 1 customers found this review helpful)

       
      5.0

      My Mac sped up

      By rafal

      from Milton Keynes, UK

      Verified Reviewer

      I used to have 4GB of RAM which was good enough back when I bought my Mac with OS X Lion. But now we have El Capitan and it's lot more memory hungry. I've noticed immediate speed boost after adding another 8GB of RAM. Application open faster, everything seems to work faster and I hardly ever see any compressed memory, and even if I do, it's always very small amount of compressed memory. I'd definitely recommend this product.

      (1 of 1 customers found this review helpful)

       
      4.0

      Pleased I made this purchase.

      By Mike the amateur

      from Wales

      Verified Reviewer

      Pros

      • Easy To Instal
      • Improved Speed On Restart
      • Shut Down Time Shorter

      Cons

        Best Uses

          Less coloured wheels and much quicker shut down!
          When installing new memory boards you need to be bold with the finger pressure needed to engage contacts.

          (0 of 1 customers found this review helpful)

           
          3.0

          Confusing order system

          By Baz

          from Wrexham

          Seems fine. They work - how well I know not.

          (1 of 1 customers found this review helpful)

           
          4.0

          Imac refreshed

          By DGHJ

          from Coventry

          My 2011 iMac had 4Gb memory and worked very well, but when I purchased an upgrade of 8Gb from Crucial, there was an immediate improvement in speed, particularly when multitasking.

           
          5.0

          Great product

          By Fbelinch

          from Catalonia

          Verified Reviewer

          Pros

          • Fast
          • Quality product
          • Well packed

          Cons

          • None

          Best Uses

            Easy to install on a mid-2011 iMac. Now it's as fast as it was when I bought it

            (1 of 1 customers found this review helpful)

             
            5.0

            8GB KIT (4GBX2) upgrade for IMAC (21.5 AND 27-INCH, MID 2011

            By Mary

            from Nottinghamshire

            Verified Reviewer

            I found the process of pushing the memory modules in difficult for me; it would help if there was something to protect your fingers/thumbs as the module edge is very sharp. Very pleased with Crucial on ordering and prompt delivery.

             
            5.0

            Arrived and worked

            By Peter 10001

            from Bristol

            Verified Reviewer

            Pros

            • Arrived
            • Good Website Selection
            • Worked

            Cons

            • Could be cheaper

            Best Uses

              See above

               
              5.0

              Quick and easy Mac upgrade.

              By IOMJools

              from Isle of Man

              Verified Reviewer

              This is my second RAM purchase from Crucial for different machines and both sets have been instantly recognised by the respective systems and perform flawlessly.

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