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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
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
MacBook Pro Unibody
MacBook Pro (17-inch 2011)
(October, 2011)
Model ID: MacBookPro8,3
2.4GHz, 2.5GHz
MacBook Pro Unibody
MacBook Pro (17-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,3
2.2GHz, 2.3GHz
MacBook Pro Unibody
MacBook Pro (15-inch 2011)
(October, 2011)
Model ID: MacBookPro8,2
2.2GHz, 2.4GHz, 2.5GHz
MacBook Pro Unibody
MacBook Pro (15-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,2
2.0GHz, 2.2GHz, 2.3GHz
MacBook Pro Unibody
MacBook Pro (13-inch 2011)
(October, 2011)
Model ID: MacBookPro8,1
2.4GHz, 2.8GHz
MacBook Pro Unibody
MacBook Pro (13-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,1
2.3GHz, 2.7GHz
iMac Intel
iMac (21.5-inch Late 2011)
(August 2011)
Model ID: iMac12,1
3.1GHz 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 i3, 3.2GHz i3, 3.6GHz i5
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
Mac mini Intel
Mac mini (Mid 2011)
(July, 2011)
Model ID: Macmini5,1 & Macmini5,2
2.3GHz, 2.5GHz, 2.7GHz
Mac mini Intel
Mac mini (Mid 2011 Server)
(July, 2011)
Model ID: Macmini5,3
2.0GHz
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 / 5 280 out of 290 (97%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Faxe Location: Denmark Age: 55-65 Experience Level: Hobbiest Owned Product: less than a month
Rating: 5/5 Perfect upgrade. August 16, 2019 This was my first time switching ram, but the how to videos from OWL made it at piece of cake. My mid 2011 27" iMac was born with 2 x 2GB ram, and after upgrading to 2 x 8GB of the OWL ram it is like a new computer to me, no more waiting for things to happen, just press the enter key, and a new page is displayed.

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

Verified Buyer
Reviewer: Dronko Location: Zagreb, CRO Age: 35-44 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Perfect upgrade June 7, 2019 Came real quickly, installed memory module myself following tutorial, works perfectly! Thank you very much.

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: mntnblaster Location: Los Angeles, CA Age: 25-34 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Breathes new life into vintage machines! April 29, 2019 Having to upgrade my MBP 8,2 to High Sierra because Mavericks was left behind, I ordered a 16 GB ram kit, and I've noticed a dramatic change in performance from my machine. Very happy I get to keep it for a few more years!!

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

Verified Buyer
Reviewer: Williamtje Location: UK Age: Over 65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Well worth it! April 29, 2019 I bought my Macbook Pro early in 2011 and bought, at that time, the best available spec and was told the max Ram was set at 8gb

In recent years I have gone on to an interest in HDR Photography and 360 Panoramas and, of course, the render and save times have become longer as my files have become larger

It was exciting to read that I could now put 16gb in my computer and the OWC videos explained how very easy it was to do this

I am extremely pleased, to say the least .... a file render and save time has now gone from nearly 7 minutes down to 19 seconds ... using the same old hard drive. FAB!!

The photo shows the new Ram in place and my next mission to install an SSD hard drive

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

Verified Buyer
Reviewer: ShopperGermany Location: Erding, Germany
Rating: 5/5 Makes my old Mac fast again January 27, 2019 easy to install - at first the 2011 MacBook Pro did not recognize the 2x8 GBmemory upgrade (according to Apple's website my MacBook works only with a max. of 2x4GB). Solution: Shut down the Mac, Disconnect the AC power (not battery), then press the power on button for a minimum of 20 sec, it boots in the meantime. This deletes some internal settings. After that, the Mac recognized the 2x8 GB. Great!

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

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! 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! 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! 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! 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! 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! 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! 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! 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: 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! 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! 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! 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! 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! 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.

Customer Videos:

OWC Memory 16.0GB 2 x 8.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR3S16P OWC SKU: OWC1333DDR3S16P OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day only $79.88
Add to CartOther World Computing 1333DDR3S16P In Stock, Click to Buy Now
Additional Capacities & Kits:
  • 2GB
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    • OWC Price $19.98
  • 4GB (2x2GB)
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    • Matched Kit for $19.88
  • 8GB (2x4GB)
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    • Cyber Saver $39.88
  • 8GB
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  • 12GB (8GB+4GB)
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    • Matched Kit for $58.99
  • 16GB (2x8GB)
  • 16GB (4x4GB)
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  • 32GB (4x8GB)
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