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12.0GB OWC Memory Upgrade

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.
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 (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
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 / 5 230 out of 238 (97%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: parsleymom Location: maryland Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Quick Service April 10, 2017 I ordered this to increase the RAM on my iMac. I am relatively comfortable with computers, but had never attempted before to change memory or other hardware. The item was perfect, easy to install and my computer now works like new!

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: Skilos Location: CT Age: 45-54 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 RAMM that delivers April 9, 2017 Upgraded an older MacBookPro8,2 early 2011 MBP. I like the older ones they still have all the ports. Had only 4GB. bumped up to 16GB with Mac Sales "16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit". Big difference, Photoshop and AutoCad gobble up RAM. noticed the speediness right away. Install was straight forward as usual.

Next up a nice SSD from MacSales, and we are off and running. This thing should be flying when i'm done. MacSales quality parts at good prices. My go to spot.

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: Cajak Location: PTY Age: 35-44 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Ram April 9, 2017 Works 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: luckyfix
Rating: 5/5 good product April 8, 2017 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: BentBob Location: Dallas Texas Age: Over 65 Experience Level: Hobbiest Owned Product: less than a month
Rating: 5/5 16GB changed everything April 7, 2017 This was probably the easies upgrade yet. Memory sure makes a difference.

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: Happyguy Location: SC Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Great April 7, 2017 My Grand daughter need to upgrade RAM in MBP. Got it quickly, installed it and worked exactly as it should!! Thanks. Good price too!!

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: okiryler Location: Honolulu, HI Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Amazing April 7, 2017 After carefully selecting the correct product to match the model and capabilities of my Mac, the upgrade to this RAM improved the speed of my machine 10 fold. The service was streamlined and wonderful. My product arrived a day before expected. The instructional video was all I needed to complete the repair in about 15 minutes. I would highly recommend OWC products to anyone looking to upgrade their machine.

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: Missy
Rating: 5/5 Speeded up my Mac March 31, 2017 Extremely pleased with product and direction for installing. So glad we found you. Couldn't be happier with the results!

I would recommend this item to a friend! 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: MikeDelighted Age: 45-54 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Macbook8,1 (Early 2011, 2.3Ghz) Runs Like New! March 14, 2017 This review is for both the 16.0GB (2x 8GB) PC3-10600 DDR3 1333MHz Memory Upgrade (OWC1333DDR316P) and the Solid State Drive Kit (OWCY3SSD6E480) which includes the OWC Mercury Electra 6G SSD 480GB drive. These were installed in a Apple Macbook Pro (Macbook8,1 – Early 2011 2.3Ghz; which had the original 4GB of memory and 320 Gig HDD with approximately 38 GB free, and macOS Sierra 10.12.3). I also did a clean install of MacOS Sierra as was recommended in the OWC/Macsales help guides.

Prior to upgrading I was extremely frustrated with the computer and was ready to buy a new mac. All of my applications took forever to open (>1 minute to open any one application was common, sometimes 2-3 minutes when other applications were open). Also, I was getting the spinning beach ball/pinwheel of death continuously during normal use, and any time I had more than a few browser tabs open and/or more than one application (like Word or Excel). I was NOT doing any kind of truly heavy lifting like photo or graphics editing. As a result, I even tested for viruses or malware thinking that there was no way the computer could be running this slow otherwise.

However, after checking the Activity Monitor (memory tab) for memory utilization it became clear that it was maxed and that there was a lot of disk swapping going on to manage the lack of memory. Checking the same after the upgrade, I’m regularly seeing 12GB of ‘Memory Use:’ of the 16GB available. This is occurring, for example, when I am typing this review, and have Chrome open with 16 tabs open (many news articles), also Excel, Word, and a cloud storage application. All of these are essentially idle while I’m typing, but nonetheless, 12 GB of memory used—this is not a technical analysis, but surely with only 4GB previously, this must explain the beach ball of death?

Immediately after performing both upgrades, and completing the clean install of macOS Sierra and transferring over my data from the old HDD, I tried an experiment: I clicked to open Chrome, Firefox, Word, and Excel one after another as quickly as I could. Previously, opening even two of these at once caused my macbook to choke, in this case all of them opened in <30 seconds. Incredible difference.

In summary, my macbook is running like a brand new computer, and I highly recommend this upgrade path for anyone who has a similar macbook. I used the helpguides available for backing up my existing drive, installing macOS Sierra and transferring the existing data to the new SSD. Also the videos on installing the memory and the hard drive, both of which was very easy to do on my mac.

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: Queenof1211 Location: Columbia, SC Age: 45-54 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 works perfectly March 14, 2017 Memory works perfectly in my mid-2011 iMac 21.5". Arrived quickly, installation instructions were simple, took me 5 minutes. I've now doubled my RAM and my Mac works like new again!

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: XavierATL Location: Atlanta,GA
Rating: 5/5 Great upgrade March 13, 2017 My Macbook pro is much faster after installing the new memory, was definitely worth the money spent, will use this website for future upgrades as 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 Top 250 Contributor
Reviewer: rsewill Location: Saint Cloud, Minnesota Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 You can never have too much RAM March 9, 2017 I finally upgraded my two 2011 MBPs! My 15" had 4GBs RAM and and my 17" had 8 GBs RAM. Now they each have 16 GBs RAM! The install videos on OWC made the swap a snap!!

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: neon8 Location: Simcoe, Ontario, Canada Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Help! March 1, 2017 Great support. Great service! What else do you need?

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: KentJarrett Location: Dallas, TX Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 WOW what a difference! February 28, 2017 I purchased a new MacBookPro Touchbar over Christmas. I LOVE that machine, but I quickly realized just how slow my current 2011 MacBook Pro was. It was a i7 2.8 GHZ machine. By upgrading the memory from 4 GIG to 16 GIG and installing the 500 GIG SSD hard drive, it made the old machine also as fast as the new machine. If I would have done these upgrades first, I would have not bought the new Mac. WOW,, what a difference and very easy upgrade to do. Followed the step by step videos with NO problems.

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: SeaRock Location: Simi Valley, CA. Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Faster Made Life Easier! February 20, 2017 What a huge speed improvement. My "Mini" is rocking fast now. The family is much happier now. I should get a few more solid years out of it. The videos make installation a breeze. Also, I have had excellent follow-up from Customer Service, since my purchase. Great company!

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: FumbleFingers Location: Sacramento, CA Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Easier than I thought it would be February 8, 2017 Upgraded my mid-2010 iMac from 4mb memory to 16mb. It was easy to figure out which product to order for my mac. It was even easier to install than I thought it would be--I'm usually all thumbs on this sort of thing. And my mac is running better than ever.

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: blueskiesnrainbows Location: Long Island, NY Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great Solution! February 1, 2017 This upgrade jacked up my Mac's performance at a great bargain.

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: Tzinger Location: Orange County California Experience Level: Noob Owned Product: 1-3 months
Rating: 5/5 Great Service and simple to order what I needed January 31, 2017 Great website with instructions to find the exact parts I needed for my computer. Installation tips as well easy to follow. Quick turn around on order and shipping.

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: Capa Location: Connecticut Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Good Performance January 31, 2017 My MacBook was slowing down and I finally decided to buy new SDRAM DDR3 to upgrade. After the upgrade, the MacBook looked like the same way I purchased it at the Apple Store. Thanks!

I would recommend this item to a friend! 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: ronaldeugene Location: HAWAII Age: Over 65 Owned Product: less than a month
Rating: 5/5 THE EXACT PRODUCT AT THE RIGHT TIME January 30, 2017 PRODUCT WORKED WONDERFULLY IN MY COMPUTER AND HAS INDEED ADDED THE SPEED I ANTICIPATED. THANK YOU AGAIN FOR YOUR FINE SERVICE.

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: Alins Location: Campinas, Brazil Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 No problems January 30, 2017 Memories are in place, working well since the beginning.

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: DCMac
Rating: 5/5 Perfect! January 30, 2017 Product and customer service were spot on, couldn't ask for anything better. I'm glad I chose MacSales.com!

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: lowerground Experience Level: IT Professional
Rating: 5/5 Works Great!!! January 19, 2017 iMac Mid 2010 27" per specification, maximum memory is 16GB only (4x4). But i installed this 8x8 & my iMac mid 2010 recorgnizes the 32GB mem.

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 250 Contributor
Reviewer: manauref
Rating: 4/5 Worked great January 17, 2017 for processing large arrays and surfing the internet at the same time

I would recommend this item to a friend! 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 Top 250 Contributor
Reviewer: manauref
Rating: 5/5 Great for work January 17, 2017 Great for processing large arrays and using memory intensive websites at the same 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:

OWC Memory 12.0GB 4.0GB + 8.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR3S12S MacSales.com SKU: OWC1333DDR3S12S OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $92.78Matched Kit for $84.99
Add to CartOther World Computing 1333DDR3S12S In Stock, Click to Buy Now