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    OWC Special Offer Available

    $70.99 off *NOW* Get Parallels Desktop Pro Edition - Windows/Multi OS Compatibility software for Mac - Only $29.00 with select OWC SSDs, HDDs, Memory, External Storage, and Optical Drives! (Limit 3 rebates, 1 rebate per qualifying item)
    Must purchase with: PPDPROSUB1Y-REB29

    24.0GB OWC Memory Upgrade

    2 x 4.0GB + 2 x 8.0GB 1333MHz DDR3 SO-DIMM PC10600 204 Pin
    OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program | 30 Day Money Back Guarantee
    Memory Image
    Product Specs:
    Memory Trade in
    Save money by trading in your original chips! View available memory rebates.
    From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
    Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.
    - Please allow up to 14 Days from the time we receive your memory for testing and rebate processing.
    - The OWC Rebate is for up to the same number of memory modules purchased and must be in working order.
    This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
    iMac Intel
    iMac (27-inch Mid 2011)
    (May, 2011)
    Model ID: iMac12,2
    2.7GHz i5, 3.1GHz i5, 3.4GHz i7
    Detailed specs
    Install Videos
    iMac Intel
    iMac (27-inch Mid 2010)
    (July, 2010)
    Model ID: iMac11,3
    2.8GHz i5, 2.93GHz i5, 3.6GHz i7
    Detailed specs
    Install Videos
    iMac Intel
    NOT COMPATIBLE
    iMac (27-inch Mid 2010)
    (July, 2010)
    Model ID: iMac11,3
    3.2GHz i3
    Detailed specs
    Install Videos
    iMac Intel
    iMac (21.5-inch Mid 2011)
    (May, 2011)
    Model ID: iMac12,1
    2.5GHz i5, 2.7GHz i5, 2.8GHz i7
    Detailed specs
    Install Videos
    iMac Intel
    NOT COMPATIBLE
    iMac (21.5-inch Late 2011)
    (August 2011)
    Model ID: iMac12,1
    3.1GHz i3
    Detailed specs
    iMac Intel
    NOT COMPATIBLE
    iMac (21.5-inch Mid 2010)
    (July, 2010)
    Model ID: iMac11,2
    3.06GHz, 3.2GHz, 3.6GHz
    Detailed specs
    Install Videos
    PC Laptop
    PC Laptops
    Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

    Customer Ratings

    Write a Review 4.9 / 5 281 out of 291 (97%) reviewers would recommend this product
    1 2 3 4 5 6 7
    Verified Buyer
    Reviewer: poet Location: Boston, MA Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
    Rating: 5/5 16GB is the new 640k of RAM June 13, 2018 8GB is constricted on my Macbook Pro 8,2. Bumping up to 16GB was quick and easy and it keeps this 2011 MBP still humming along.

    This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Rommel Location: Melbu, Norge Age: 45-54 Experience Level: Home User Owned Product: less than a month
    Rating: 5/5 This product is fantstic in use & the way it was put together. June 12, 2018 I replaced these Memory Kit and it went quickly and perfectly. In use and how fast these work.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Carlsagan2nd Location: Michigan Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
    Rating: 5/5 As advertised June 9, 2018 The memory upgrade went as well as expected!

    I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: MariaElena Location: Los Angeles Age: 45-54 Experience Level: Noob Owned Product: less than a month
    Rating: 5/5 Excellent Product/Service & Easy to Install June 5, 2018 I nervously ordered 32gb of Memory (consisting of 4 modules) for 2012 27" iMac. (Apple says this computer takes up to 16gb, but it actually works better w/32gb). I wasn't sure that I could install it myself. But thankfully OWC has a video that shows you how to do it. At first I had a lil trouble. I called Customer Svc & they gave me some tips. Tried it again & it worked like a charm! It turns out I hadn't pushed it in all the way.

    Very happy with my order! I'm now waiting for my rebate check.

    Thank you!

    I would recommend this item to a friend! This review is from 32.0GB (8GB x 4) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: MoonDogg Location: Hot Springs, AR Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months
    Rating: 5/5 Still running strong 7 Years Later!! May 27, 2018 I have had this installed for over 7 years and it still works without any issue. That is quality you can trust.

    This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Targi Location: Hastings, NY Age: Over 65 Experience Level: IT Professional Owned Product: over 6 months
    Rating: 5/5 Replacement May 12, 2018 I was surprised not only with the quick service (online chat at that) but also the adjustments to errors from my part. I bought a non refundable memory that didn't even work for my computer; OWC offered a correct replacement. I am awaiting for the new memory with high anticipation. Thank you for your help

    This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Harry Location: DFW area Age: Over 65 Experience Level: Power User Owned Product: less than a month
    Rating: 5/5 iMac 32GB RAM upgrade May 2, 2018 OWC website made it easy to find and order a 32GB RAM upgrade for my 2011 iMac. Order was received faster than expected. The RAM was easy to install and works flawlessly.

    I would recommend this item to a friend! This review is from 32.0GB (8GB x 4) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: UpgradeMe Location: Liverpool, NY Age: 45-54 Experience Level: IT Professional Owned Product: 1-3 months
    Rating: 5/5 My goto site for breathing new life into old Macs. April 30, 2018 I've discovered the good practice of rebuilding old Macs, and OWC is without a doubt the only place to go to for completely compatible parts to turn these old used Macs into new powerhouses. The prices can't be beat either. You would easily spend more for "questionable" parts from other sites. Thanks OWC.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: BernardD
    Rating: 5/5 MacBook Pro Memory Upgrade April 26, 2018 Got this memory to upgrade the memory on an older MacBook Pro. Works fine.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Songbird Location: Mukilteo, WA Age: Over 65 Experience Level: Home User Owned Product: over 6 months
    Rating: 5/5 Super easy March 18, 2018 Easy to locate right parts, easy to install. Great improvement in RAM speed. It's like I have a new computer!

    I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: MacLover2018 Location: Seattle,WA Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
    Rating: 5/5 iMac like new again! March 11, 2018 Purchased the maximum amount of RAM for this model. I love the website, it's,very easy to use, and walked me thru purchasing the correct product for my Mac. The extra RAM has my old iMac working like it did 5 years ago!

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: dbush Location: Louisiana Age: 55-65 Experience Level: IT Professional Owned Product: less than a month
    Rating: 5/5 Memory upgrade kit for Macbook Pro 15" March 11, 2018 I'm very pleased with the memory upgrade kit that I received. It is exactly what my 15" Macbook Pro needed. Wonderful Customer Support at MacSales. Terrific videos on installing memory on your website!

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Antonioj Location: Virginia Beach, VA Age: 55-65 Experience Level: Home User Owned Product: over 6 months
    Rating: 5/5 GOOD PRODUCT February 27, 2018 I am pleased with the added 16 GB of RAM. I’m not a computer goo roo, not even close. But I now have 20 GB. When it comes to moving around off line there’s a big difference. I’m told I have really good Wi Fi. In line I’m about the same. I’m very happy with my product

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: jpat Location: Midwest Canada Age: 55-65 Experience Level: Noob Owned Product: less than a month
    Rating: 5/5 Wonderbar! RAM should be the name of a new chocolate bar!! February 12, 2018 Well, for a beginner / skeptic / novice person like me - who knows nothing about computers .. I am so thanks for the wonderful website and people behind MacSales.com.

    Folks ... if you do one upgrade on your beloved MAC, get the RAM .. it is amazing, extending the life of our wonderful input devices for another few years ... breathing new life into your device with a bit more pep and vigor!

    I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Sethimus Location: New York, NY Age: 35-44 Experience Level: Power User Owned Product: less than a month
    Rating: 5/5 Trustworthy Upgrade February 6, 2018 I updated an iMac11,2 (3.06 GHz) in January 2018 with this kit to max out its memory capacity and buy some more in-service time for this aging office machine. I had read a review elsewhere that claimed some users experienced problems with OWC memory (specifically 16GB) in this particular iMac, but I decided to give it a try anyway. We've had no issues whatsoever, and the primary user of this machine is very happy with the upgraded performance. Another win for OWC!

    I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Rose7Mc Location: France Age: Over 65 Experience Level: Home User Owned Product: less than a month
    Rating: 3/5 I'm satisfied with this product February 6, 2018 I'm satisfied with this product, but the explanation should be a bit better. You have to press the module VERY firmly into the compartment and the click you can hardly hear. You dare not press so firmly, because the modules are vulnerable. I'm glad I was successful eventual.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Oldcabdriver Location: North Carolina Age: Over 65 Experience Level: Home User Owned Product: less than a month
    Rating: 5/5 Great memory fix for my mid-2011 iMac January 30, 2018 I could not be happier with the new 32Gb of memory I just put into my aging iMac. It was just what I needed to handle memory-demanding Pro Tools, Photoshop and other applications that kept freezing and generating "need more memory" error messages. I found MacSales, chatted with a sales rep to verify that I ws ordering the right fix. Two days later the memory upgrade kit arrived, and I had it installed literally minutes later. Very simple job.I've been running both Photoshop and ProTools side by side all afternoon. They open and operate quickly, and -- best of all -- not a single interruption. This may not be the answer for everyone, but it sure worked for me.

    I would recommend this item to a friend! This review is from 32.0GB (8GB x 4) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Ballerina4life Location: Chicago, IL Age: 55-65 Experience Level: Home User Owned Product: less than a month
    Rating: 5/5 Instruction video made this possible! January 28, 2018 The instructional video gave me the confidence to do this upgrade and the product can quicker than expected and met all expectations.

    I would recommend this item to a friend! This review is from 2.0GB PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 Memory Upgrade Module. Customer Videos:

    Verified Buyer
    Reviewer: buckeyeTom
    Rating: 5/5 just what I needed... January 25, 2018 worked perfectly..... fast shipment

    I would recommend this item to a friend! This review is from 4.0GB (2x 2GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: jacob225 Location: Stuttgart, Germany
    Rating: 5/5 Best Purchase I made in years January 23, 2018 I know a decent amount when it comes to various tech things, but somehow I had no idea that if I upgraded my memory the great things that would be possible. I received the memory upgrade in a good amount of time. The installation was very simple, the videos that you are able to find on installing it are straightforward and easy to follow.

    I would recommend buying this product to anyone who wants to move forward with making their computing life better.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: upgrademymacbook Age: 35-44 Experience Level: Power User Owned Product: less than a month
    Rating: 5/5 2011 MacBook Pro rides again! January 22, 2018 My wife had given up on her 2011 MacBook Pro running its standard 4GB RAM. It couldn't do two things at once and frequently beach-balled when opening even one app. The 16GB from OWC has made it snappy and useable again - she's pinching herself. This upgrade cost less than 10% of a new MacBook Pro and it was so worth it!

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: MPC67 Location: PBG, FL Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
    Rating: 5/5 Good Improvement... January 9, 2018 Since I added this new RAM, my 2011 MacBook Pro (MacOS Sierra10.12.6) is faster and runs cooler. Prior to increasing the RAM, my MBP was running around 160ºF+. Now, around 120ºF. So far, so good...

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: iMacMemory
    Rating: 5/5 Great customer service! January 8, 2018 I ordering the wrong type of memory for my iMac. Customer service quickly and cheerfully diagnosed my problem. They determined the proper memory and quickly shipped the replacement. Even thought it was my own mistake, I was allowed to return the originally-ordered memory for a full credit! It's nice to have people gracefully cover for you when you've been an idiot!

    This review is from 16.0GB (4x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer Top 250 Contributor
    Reviewer: Emerald
    Rating: 5/5 2010 iMac Upgrade January 4, 2018 I upgraded my 2010 iMac RAM to the 32GB max with these chips. It was easy to do and they work great. To confirm, I ran memory test with TechTool Pro and every thing checked out perfectly.

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    Verified Buyer
    Reviewer: Fredy Age: 35-44 Experience Level: Power User
    Rating: 5/5 Evething was Ok with my order January 1, 2018 Evething was Ok with my order ! The Memories are very good ! thanks Only the tax to Brazil from DHL is very expensive

    I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

    OWC Memory 24.0GB 2 x 4.0GB + 2 x 8.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR3S24S OWC SKU: OWC1333DDR3S24S OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day
    Reviews (291)
    only $109.88
    Add to CartOther World Computing 1333DDR3S24S In Stock, Click to Buy Now
    Additional Capacities & Kits:
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      • OWC Price $19.88
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      • $39.99
    • 8GB (2x4GB)
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      • Cyber Saver $34.88
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    • 12GB (8GB+4GB)
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