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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
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, 3.2GHz, 3.6GHz
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 / 5 167 out of 173 (97%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Anonymous Location: Brooklyn, NY Age: 35-44 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Works! April 19, 2016 I've bought RAM for my Macs from OWC for several years now. These particular DIMMs have been installed in my spouse's MacBook Pro for over three years without any issues.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: North Carolina Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 First time Order with MacSales April 18, 2016 Very satisfied with product easy install no issues. Ordering was easy and product worked as it should. Fast shipping. Will do business with MacSales again for my computer needs. Feel comfortable that the product is of quality and will last me for years.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: belgium Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 4/5 good quality April 18, 2016 Fast & furious

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Nooksack, Washington Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Nice upgrade April 12, 2016 This maxed out my early 2011 macbook pro memory, seamed to speed up some processes . Follow OWC install video if you have not done this before. Check that the dimm is seated squarely. Not hard to do.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Montreal, Canada Age: 55-65 Experience Level: Home User
Rating: 5/5 Good good good April 10, 2016 Perfect for my needs, just as described, arrived well on time

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Ottawa, Canada Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Not much to say April 9, 2016 It's ridiculous to not add RAM. This is so inexpensive and so easy to install and yet makes your computer run much more smoothly.

Best money you can spend on your computer along with an SSD.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Burnsville, MN Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent, as always March 31, 2016 Great products. Always the exact stuff I need for my Mac. And very helpful installation videos. I even had to call customer service the first time I installed new memory. Despite the installation video, I had things all bolloxed up. The tech walked me through properly installing the memory without making me feel like a pinhead. Bravo OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Los Angeles Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 As described March 19, 2016 The memory arrived ahead of the time promised. Works as advertised.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Portland, OR Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Exactly as described February 21, 2016 And easy to install thanks to the OWC install video!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Ann Arbor, MI Age: 25-34 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Made my 2011 MacBook Pro Lighting Fast February 19, 2016 I have an Early 2011 13" MacBook Pro that came with 8 gb of RAM, but after experiencing my computer slow down adopting OS X Mavericks, and then slowing down slightly more after adopting OS X Yosemite, so I figured I'd try the upgrade recommended by OWC.

I was blown away. The computer boots up insanely quick now and opens apps within a few seconds, even PhotoShop.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Wisconsin Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 works great February 13, 2016 Upgraded my 2011 15" MacBook Pro from 4 GB to 16 GB. Really speeds most things up quite a bit. Easy to install per their video instructions. OWC shipped it right away and I got it in 2 days.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Bridgeton, NJ Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great Company to Work With February 13, 2016 I called for advice on purchasing the appropriate upgrade kit for my 2011 macbook. The MacSales rep was knowledgeable and very helpful. My item was shipped quickly and I used the online video for installation. I thought it would be a complicated task to upgrade my mac, but MacSales made it easy!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Toronto, Ontario, Canada4 Age: 45-54 Experience Level: IT Professional Owned Product: 3-4 months
Rating: 5/5 Met expectation February 12, 2016 Bought these Simms for an old Mac. They were added with the original RAM and figure I might need to only keep the new pair but everything worked well. No freezing, crashing, etc. Worked as advertised and it brought new life to the old machine. The order also arrived quickly and packaged well. Recommended.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: North Miami Beach Age: 45-54 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Reliable Memory @ a Reasonable Price. February 6, 2016 Always reliable & if we ever need Customer Service is great. We never have any issues with the memory we purchase thru OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Boston Age: Over 65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Superior February 5, 2016 I had purchased a different brand of RAM upgrade, elsewhere, which was advertised as Apple-Compatible: it was not, and had to be returned. Then, I bought the OWC 16-gig offering, and it works exactly correctly on my MBP, late 2011.

Verified Buyer
Reviewer: Anonymous Location: Ontario, Canada Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Definitely made a difference in speed February 1, 2016 Despite my reservations, and Apple's claim that RAM is overrated, this definitely helped. Thank you!!

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous
Rating: 5/5 Good product right in time! January 31, 2016 I would recommend this item to a friend!
Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Dumfries, VA Age: 45-54 Experience Level: Hobbiest Owned Product: over 6 months
Rating: 5/5 Easy To Install....Great Improvement to Computers Performance January 31, 2016 Took a few minutes to install. Easy process. Anyone could do it.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Pittsford, NY Age: Over 65 Experience Level: Home User
Rating: 5/5 Great product! January 29, 2016 A great product from a great company. Fantastic customer service. Highly recommend OWC for memory.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Sydney Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Great product in great packaging January 28, 2016 Great product in great packaging, very easy to change

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Hillsborough, NC Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent Service January 28, 2016 Product was as advertised. Prompt and efficient transaction. Customer service representative was very helpful and knowledgable

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Works great January 22, 2016 Received the product promptly. Simple to install.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Lawrence, KS Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent January 18, 2016 I'm not very handy and avoid DIY projects whenever I can. But I ordered 16.0GB of memory for my Mac to regain some speed after a couple of system updates. The memory arrived as promised. I watched OWC's video on installing memory on my Mac and then installed it. All went well, my Mac and the new memory worked as soon as I turned the Mac on. I got some speed back, and I couldn't be more satisfied with OWC from start to finish.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: New Jersey Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Glad I upgraded January 17, 2016 Works as expected. Easy to install.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: North Hollywood, CA Age: 45-54 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Improved performance and got a rebate January 13, 2016 I used to have 2 - 4GB chips that I bought from OWC. They worked well but when I upgraded my MacMini to 10.9, it slowed down a lot--annoyingly slow. So I bought these 2 - 8GB which maxed out my 2011 MacMini. At first I didn't think it was a noticeable improvement but after a few weeks I was aware it was much faster. And OWC is so great that I could return my old 4GB chips and got a rebate on it. The rebate is a bit of a pain to go through go I got the check fairly quickly. The only thing I wish is that I'd bought the 16GB the first time.

I would recommend this item to a friend!

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 $103.98Matched Kit for $99.75
Add to CartOther World Computing 1333DDR3S16P In Stock, Click to Buy Now