Quality Solutions. Expert Support. Since 1988.

MacSales.com Logo
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 5 / 5 39 out of 39 (100%) reviewers would recommend this product
1 2
Verified Buyer
Reviewer: Kalfan Location: Victoria, British Columbia, Canada Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Spot on! December 30, 2016 Received my order on time. Followed an IMac-specific YouTube video and was done. Now, I have maxed out my RAM for this machine. I'd like to try an SSD upgrade but it looks to be very challenging.

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

Verified Buyer
Reviewer: Brother Location: AK Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 super easy to install December 30, 2016 I have a 2011 27" IMac that I was trying to use with Lightroom, I believe it came with 4gb of memory, that didn't work. I was gonna sell my computer, until I read about OWC. Well worth upgrading, 5 min install and I was up and running and Light room now runs smoothly. Thinking about upgrading my 2009 Macbook pro.

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

Verified Buyer
Reviewer: CRMJACKSON Location: DENVER CO Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Excellent Service December 16, 2016 From the Apple Store phone call to the Apple Technician whom directed me to MacSales for my iMac 2011 for a memory upgrade due to I was installing Parrells on my iMac due to work requirements I can't say enough about how great the whole experience was. And even after 2 days of ordering up my memory MacSales had a special going on with Parrells software. I inquired if I might be able to get the discounted rate even though I had not asked for it during the initial purchase... without even questioning me MacSales automatically applied the discount and shipped out the software authorization immediately. I was and still am impressed with the excellent customer service. This is just another reason I like Mac over PC. Thanks guys and gals... you all rock!

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

Verified Buyer
Reviewer: TheRock Location: Iceland, RVK Age: 45-54 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Excellent 32GB Upgrade kit, Easy Install December 16, 2016 It was so easy using the macsales.com website. The information on the website is very good and I was well informed what kind of an upgrade I could get for my iMac i7 2010. I went for the 32GB, well you never have to much memory. It was shipped out immediately and received it in a couple of days. Will definitely be using this website again. Thanks MacSales!

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

Verified Buyer
Reviewer: Greco
Rating: 5/5 Great upgrade for my iMac December 12, 2016 Great piece of hardware! My iMac runs so smooth, lots of apps running at the same time without spinning balls! Everyone with a mid - late 2011 iMac should have the upgrade! Anxious for a ssd upgrade too!

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

Verified Buyer
Reviewer: zactech Location: Massachusetts Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 32 GB Upgrade kit Easy Install December 7, 2016 The 32 GB mac memory upgrade kit was an easy install in my mid 2011 iMac and it is working flawlessly. I would definitely recommend this upgrade. Now I can run all my usual apps and still have gigabytes of memory to spare.

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

Verified Buyer
Reviewer: GregE Location: Houston, Tx Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 OWC Customer Support was Great November 20, 2016 Called OWC to discuss upgrading my iMac memory and they were very helpful in their advice. Ordered 32GB (8x4) to replace my 4GB (2x2). Arrived on time and works great. Good products, Good Service!

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

Verified Buyer
Reviewer: Bernie50 Location: Montreal,Canada Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 This product is a must November 8, 2016 This my first time with MacSales and I am very satisfy with the product , and with the prompt service given by the sales person. Many thanks

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

Verified Buyer
Reviewer: Mac11
Rating: 5/5 Awesome deal! October 24, 2016 Easy to install, great product at a great price!

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

Verified Buyer
Reviewer: chavezlos Location: Colorado Springs, Colorado Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Memory upgrade kit October 13, 2016 It was easy using MacSales, this website was able to answer how much memory my kind of computer needed. It was shipped out immediately and received it in a couple of days. Will definitely be using this website again

Thanks MacSales!

Angela

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

Verified Buyer
Reviewer: hocohouston Location: Houston TX Age: Over 65 Experience Level: Noob Owned Product: over 6 months
Rating: 5/5 Simply delighted October 11, 2016 I had no idea that upgrading from factory-standard to 32 GB would make such a difference. Despite the clear installation video, at first I didn't seat the new memory boards all the way; but on the second try, I shoved the modules home--and it made a big difference. My mid-2011 iMac responds much quicker than before the upgrade. I'm a very happy user!!

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

Verified Buyer Top 250 Contributor
Reviewer: ChiTownBandit1 Location: Albuquerque, NM Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 What a Surprise! October 9, 2016 Beyond my expectations. Works well ... Apple Hardware Test passes! Woke up an aging computer to like-new. Very pleased.

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

Verified Buyer
Reviewer: Anonymous Location: Trinidad, West Indies Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Great product with excellent features June 5, 2016 The product was received in great condition relatively quick after ordering. The process of ordering was very efficient and effective. I am very impressed with the excellent level of costumer service and as a result I will purchase from OWC again in the future. I will also recommend OWC to persons seeking the products that the company sells. The products are working very well so far. I also like the videos on the MacSales.com Web Site that provide instructions on how to remove and install the items that OWC markets.

I would recommend this item to a friend!

Verified Buyer Top 100 Contributor
Reviewer: Anonymous Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Great product and service May 24, 2016 OWC premium quality product, easy to install, works perfectly. Fast delivery, safe packaging.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Alabama Age: Over 65 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 Great memory at a great price April 5, 2016 The speed of my mid 2011 iMac is unbelievable with the upgrade to 32 GB of memory over Apples 16 GB as Maximum. MacSales has great products at a great price and ordering and delivery is fast. Customer service is great and they are knowledgeable about Apple products.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Despite what Apple says, 32GB of RAM works! March 31, 2016 I was a bit hesitant to order this kit since Apple states that the July 2010 iMac Pro only supports 16GB of RAM, but I figured I'd try it and if it didn't work, I'd just return the RAM.

Sure enough, after I installed the RAM, it shows up as 32GB on my machine! Works fantastic and has significantly increased the amount of work I can do at once on my machine (heavy number crunching in Excel, opening massive images in Photoshop, etc.)

Also, it was great that I could send in my old RAM and get a rebate on it. :)

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Quick, easy upgrade with no hassle. March 5, 2016 I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous Location: New Jersey Age: 25-34 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 It's good to be the king February 20, 2016 Back in 2011, I never would have thought I'd need more than 16GB of RAM for video editing, but after tacking on audio engineering, 3D modeling effects, and a whole slew of other plugins, I realized I had to make the leap. It was totally worth it though. It feels so great when the computer is faster than I am in my workflow again.

Keep in mind what processor you have, as I'm glad I went with the i7 because this much memory feels like such a luxury. The speed isn't as important in this case.

Since my OWC 16GB kit is almost 5 years old now and without any issues, I'm sure this kit will be just as reliable.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Arroyo Grande, CA Age: 55-65
Rating: 5/5 Great product, great company February 18, 2016 My experience with OWC could not be better! Wonderful company, wonderful customer service, wonderful people, wonderful products.

Every time I need something I will first look if OWC has it! My preferred company!

Thank you OWC for making my tech life stress free.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: TX Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great upgrade February 18, 2016 As always quick shipping and delivery. Simple plug in after watching the installation video.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: New Jersey Age: 55-65 Experience Level: IT Professional Owned Product: 3-4 months
Rating: 5/5 Great addition to my 2011 iMac January 7, 2016 The additional memory has help me move along with editing photographs. As a professional photographer, retouching photos as quickly as possible is important. Should have added more memory to my system a long time ago.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Durham, NC Age: 25-34 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Great addition for better performance November 30, 2015 I went from 8GB to 32GB and I will say the difference is impressive.

iMac (27-inch, Mid 2011) 3.1 GHz Intel Core i5 32 GB 1333 MHz DDR3

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Frenchtown, MT Age: Over 65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 The Finishing Touch on my Mid 2011 27" I7 iMac! November 1, 2015 The original iMac Apple Hitachi HDD died. I decided to upgrade the iMac with an OWC Mercury Extreme 480GB SSD and a WD Black 2TB HDD. Using OWC cables for the SSD and for the HDD installation, coordinating the process with OWC videos, the installation went smoother than I expected. I created a Fusion Drive using the SSD and HDD. I decided to do a clean install of the Fusion Drive using El Capitan. Then dragging my projects from an external HDD and downloading Apps from the Apple App Store to restore my apps and files, instead of using Time Machine. Now my Mid 2011 iMac feels like a new computer. The finishing touch was using the 32GB of OWC RAM to finish the upgrade. Right now everything is like a new Apple Factory Fresh iMac. Let's see what is happening a few years from now.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: West Covina, CA Age: 45-54 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 My 2010 iMac LIVES!! October 30, 2015 Made a difference going from 8GB of ram to 32GB.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Austin, TX. Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Very Happy Customer August 10, 2015 The RAM arrived quickly. Easy install. Makes filters in Photoshop run fast(er) I can have multiple apps open. Ryan from customer service was very helpful.

I would recommend this item to a friend!

OWC Memory 32.0GB 4 x 8.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR3S32S MacSales.com SKU: OWC1333DDR3S32S OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $259.96Matched Kit for $247.99
Add to CartOther World Computing 1333DDR3S32S In Stock, Click to Buy Now