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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.
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
iMac Intel
iMac (27-inch Mid 2010)
(July, 2010)
Model ID: iMac11,3
2.8GHz i5, 2.93GHz i5, 3.6GHz i7
iMac Intel
NOT COMPATIBLE
iMac (27-inch Mid 2010)
(July, 2010)
Model ID: iMac11,3
3.2GHz i3
iMac Intel
iMac (21.5-inch Mid 2011)
(May, 2011)
Model ID: iMac12,1
2.5GHz i5, 2.7GHz i5, 2.8GHz i7
iMac Intel
NOT COMPATIBLE
iMac (21.5-inch Mid 2010)
(July, 2010)
Model ID: iMac11,2
3.06GHz, 3.2GHz, 3.6GHz
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 / 5 269 out of 279 (96%) reviewers would recommend this product
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Verified Buyer
Reviewer: 47adrian47 Location: Crestline, CA Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 iMac now faster November 3, 2018 By adding 8GB of RAM, my iMac is able to run more programs with little lag. Super simple to install. 2min total. I had some empty slots available. OWC just keeps my older macs running like new. Thank you.

I would recommend this item to a friend! This review is from 8.0GB PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Module. Customer Videos:

Verified Buyer
Reviewer: Euclide9 Location: PEI Canada Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 good October 31, 2018 very good works great thank you

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: Quetal1 Location: California Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 It Worked October 31, 2018 Sometimes I buy stuff because I just do. And sometimes I buy it because I need a solution to my memory problem. By adding memory to my iMac my problem was 98% solved. What do I mean? I don't get memory is being used by this website as often as I had been, I still get it and not as often. So I can live with that. Thank you OWC for helping solve my need.

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: KDWin Location: Phila., Pa Age: Over 65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Great Service October 29, 2018 Got my order in record time and the additional memory installed without a hitch in 2 minutes. Also, love the tool you sent for free. Perfect fit for the screws on the computer. Works for my knives for which I have a collection.

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: ambs Age: 25-34 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Works as advertised October 23, 2018 I got this for my Macbook Pro (Early 2011) which had become quite slow and sluggish over the years. Installation was quite easy, and the system came back up all perky and snappy. No complaints at all.

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: Hoofer Location: Pensacola, FL Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 4/5 2nd Time a Charm October 22, 2018 My 1st Upgrade Kit came quickly, was easily installed and worked great for about a week when I could not get my iMac to boot up. With the originals working, albeit slowly, the OWC representative suggested a new kit.

Came a few days later and so far so good.

Exceptional service and people to work with.

Thanks!

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: Wedge Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Much needed update for my 2011 Macbook Pro October 10, 2018 Add this memory and an SSD to my 2011 Macbook Pro really did the trick. Fast and like new again. And a lot less money than a new Macbook Pro.

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 Top 50 Contributor
Reviewer: StevenP Location: Tasmania, Australia Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Quality and service October 9, 2018 A great product at a good price, delivered across the world in an astonishingly short time.

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: MaccaRooney Location: Christchurch, N.Z. Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Product performance as expected. October 8, 2018 The two cards arrived earlier than I expected, within 14 days, and were appropriately packaged. Installation was as per their instruction video and working really well. Simply cannot fault the whole experience what-so-ever. Also had no qualms that the correct RAM cards were ordered, as OWC explain the relevant parameters very comprehensively. Thank you for a seamless experience.

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: greenchimera Location: OH Age: 35-44 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Great upgrade September 3, 2018 Enhanced the performance of my computer noticeably - speed of software loading, (extremely amateur) home recording, and so on. The video instructions for installation made the task simple. Great experience with this company!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: steffig Location: Ithaca, NY Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 came quickly August 20, 2018 worked perfectly. Very happy with the purchase.

I would recommend this item to a friend! This review is from 12.0GB (8GB+4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: JGLZHUA Location: Houston - TX Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Memory works OK August 9, 2018 The memory works as expected, no issues after 20 days of work.

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: AppleMacUser7 Location: Chicago, NY Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Simple and easy memory upgrade August 8, 2018 This was a simple and easy memory upgrade. Lots of tutorial videos.

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: MrDennis Location: Los Angeles Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Memory Upgrade August 6, 2018 Product has worked flawlessly , Would recommend , Has given my Mac Pro NEW LIFE.

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: TedL54 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Memory Work in MAC July 25, 2018 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: AceChippe Location: Hickory, NC Age: 25-34 Experience Level: Hobbiest Owned Product: less than a month
Rating: 5/5 Works great out of the box. :) July 10, 2018 Bought the RAM based on reviews, price, and rebate. So far it has been working very well.

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: Pekelo Location: Kona, HI Age: Over 65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 More Memory July 3, 2018 Installed in a Mid 2011 27" iMac to bring it up to 32 GB. Simple installation and works great. Later install of a 1 TB SSD has made this "old" system a rocket ship after install of High Sierra and a clean up. I would recommend everyone upgrade their memory (if possible) to the max!

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: NicholasGMS Location: Singapore Age: 45-54 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Excellent product! June 22, 2018 Order was placed on Tuesday (19 June 2018) afternoon and I received it on Friday (22 June) morning. I'm in Singapore, by the way, location of the inaugural Trump-Kim summit. I chose DHL express. Product was very well packaged. Installation was a breeze. Took me about 5 minutes to install on my iMac 21.5" (mid-2010) and restarted without a hitch. 'About This Mac' read "16GB 333 MHz DDR3" right away. Desktop file icons appeared instantaneously as soon as desktop appears - this has never happened before. Normally, beach balls turns and turns for a long time before icons start to trickle in, but this time, it was like Boom!, all there and refreshed with the respective document icons. I can feel the overall performance of my iMac is now speedier even with many applications opened at the same time. Clicking on any folders will display file directory at once without having to wait for comp to 'think'. I'm very happy with the product. Thank you OWC. I highly recommend this product!

- Nick G.M.S.

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 Top 250 Contributor
Reviewer: Patrickwlee Location: Toronto Age: Over 65 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Good value June 20, 2018 I have never had problems with RAM from OWC. US Mail shipping is low cost, but a bit slow.

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: 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! 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:

OWC Memory 32.0GB 4 x 8.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR3S32S OWC SKU: OWC1333DDR3S32S OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day only $209.99
Add to CartOther World Computing 1333DDR3S32S In Stock, Click to Buy Now
Additional Capacities & Kits:
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