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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 White Unibody
MacBook (Mid 2010)
(May, 2010)
Model ID: MacBook7,1
2.4GHz
MacBook White Unibody
MacBook (Late 2009)
(October, 2009)
Model ID: MacBook6,1
2.26Ghz
MacBook Unibody
MacBook (Late 2008)
(October, 2008)
Model ID: MacBook5,1
2.0GHz, 2.4GHz
MacBook Pro Unibody
MacBook Pro (17-inch Mid 2010)
(April, 2010)
Model ID: MacBookPro6,1
2.53GHz, 2.66GHz, 2.8GHz
MacBook Pro Unibody
MacBook Pro (17-inch Mid 2009)
(June, 2009)
Model ID: MacBookPro5,2
2.8GHz, 3.06GHz
MacBook Pro Unibody
MacBook Pro (17-inch Early 2009)
(January, 2009)
Model ID: MacBookPro5,2
2.66GHz, 2.93GHz
MacBook Pro Unibody
MacBook Pro (15-inch Mid 2010)
(April, 2010)
Model ID: MacBookPro6,2
2.4GHz, 2.53GHz, 2.66GHz, 2.8GHz
MacBook Pro Unibody
MacBook Pro (15-inch Mid 2009)
(June, 2009)
Model ID: MacBookPro5,4
2.53GHz
MacBook Pro Unibody
MacBook Pro (15-inch Mid 2009)
(June, 2009)
Model ID: MacBookPro5,3
2.66GHz, 2.8GHz, 3.06GHz
MacBook Pro Unibody
MacBook Pro (15-inch Early 2009)
(March, 2009)
Model ID: MacBookPro5,1
2.66GHz 2.93GHz
MacBook Pro Unibody
MacBook Pro (15-inch Late 2008)
(October, 2008)
Model ID: MacBookPro5,1
2.4GHz, 2.53GHz, 2.66GHz 2.8GHz
MacBook Pro Unibody
MacBook Pro (13-inch Mid 2010)
(April, 2010)
Model ID: MacBookPro7,1
2.4GHz, 2.66GHz
MacBook Pro Unibody
MacBook Pro (13-inch Mid 2009)
(June, 2009)
Model ID: MacBookPro5,5
2.26GHz, 2.53GHz
iMac Intel
iMac (27-inch Late 2009)
(October, 2009)
Model ID: iMac10,1; iMac11,1
2.66GHz, 2.8GHz, 3.06GHz, 3.33GHz
iMac Intel
iMac (24-inch Early 2009)
(March, 2009)
Model ID: iMac9,1
2.66GHz, 2.93GHz, 3.06GHz
iMac Intel
iMac (21.5-inch Late 2009)
(October, 2009)
Model ID: iMac10,1
3.06GHz, 3.33GHz
iMac Intel
iMac (20-inch Early 2009)
(March, 2009)
Model ID: iMac9,1
2.66GHz
Mac mini Intel
Mac mini (Mid 2010)
(June, 2010)
Model ID: Macmini4,1
2.4GHz, 2.66GHz
Mac mini Intel
Mac mini (Mid 2010 Server)
(June, 2010)
Model ID: Macmini4,1
2.66GHz
Mac mini Intel
Mac mini (Late 2009)
(October, 2009)
Model ID: Macmini3,1
2.26GHz, 2.53GHz, 2.66GHz
Mac mini Intel
Mac mini (Late 2009 Server)
(October, 2009)
Model ID: Macmini3,1
2.53GHz
Mac mini Intel
Mac mini (Early 2009)
(March, 2009)
Model ID: Macmini3,1
2.0GHz, 2.26GHz
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 / 5 518 out of 530 (98%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Anonymous Location: Dallas, TX Age: 25-34 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Where has this been all of my life??? April 28, 2016 I had a mid-2009 Macbook Pro that I hadn't used because it only had 2GB of RAM. I had been contemplating to get the newest Macbook Pro or Macbook Air, but I ultimately decided to give my old MBP some love.

This arrived earlier than expected! When I opened the package, I wasn't being careful enough and dropped one of the chips. I panicked, but it was fine. Installation was incredibly easy with the video tutorials.

Wow, the speed! I can't wait to upgrade my MBP to an SSD as well later on.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: massachusetts Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Good stuff April 24, 2016 Fair price,quick shipping,works great.The usual trifecta from OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Atlanta, Georgia Age: 35-44 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 It works as advertised! April 23, 2016 Replaced a 4 Gb cards from a MacBook 2011 and it really boosted its performance.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Afton, VA Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Memory Install EZ April 19, 2016 Upgraded memory in my 2009 iMac to bring it to 12GB. Easiest install and works like a charm! Thanks OWC!!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Cincinnati, Ohio Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Needed upgrade. April 16, 2016 My laptop was getting slower and slower using Yosemite. I had only 2 gigs of Ram. I checked out OWC's information on upgrades for my 2009 MacBook and ordered 2 new 4 gig Ram chips. I got my order in 2 days, just installed the new Ram and WOW what a difference in speed. Thanks OWC!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: West Chicago, IL Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Memory upgrade revitalized MacMini April 12, 2016 I upgraded a late 2009 MacMini Core Duo 2.53 GHz, Mac OSX 10.11.4 memory and optical disk. The OWC installation videos were an excellent resource in replacing the memory and optical disk. I replaced the OEM optical disk that had failed and upgraded the memory from 4 GB to 8 GB. The memory upgrade is very satisfying. It seems each new OSX upgrade is more memory intensive. The system boot-up, application opening and overall speed of execution has noticeably improved. I do not have a benchmark to measure the improvement but can tell you I am no longer thinking of replacing my MacMini due to sluggish performance. Thanks to OWC for the memory rebate program that provided a method to recycle 4GB memory.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: PEI Canada Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 very good product April 11, 2016 got my 2x4gb ram put them in works perfect would recommend this company to any one thats doing and upgrade on there mac. excellent service Thank You!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Redlands, CA Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Lightning fast RAM! April 10, 2016 This was the easiest, no-brainer purchase I've made in a long time. The best part isn't just the quality or package (both were great) but the video that came with it to follow step-by-step for installation.

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

Verified Buyer
Reviewer: Anonymous Location: Ridgecrest, CA Age: Over 65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Saved the price of a new laptop April 8, 2016 I got a new battery and upgraded my RAM for my 2009 MacBook Pro. Using MacSales for the RAM was an easy and inexpensive way to accomplish my money saving effort.

I would recommend this item to a friend!

Verified Buyer Top 50 Contributor
Reviewer: Anonymous Location: Florida Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 2010 MacBook Upgrade April 5, 2016 Just upgraded two 2010 MacBooks with this memory. No issues. Works perfectly.

Verified Buyer
Reviewer: Anonymous Location: Madrid, Spain Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent April 5, 2016 Fast delivery, good price and excellent service. What else do you need?

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Dallas, TX Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 BEST April 4, 2016 Item was shipped super quickly, and has made my mac mini like new (or a little better). When I need another computer or parts for mine, I will definitely shop OWC first.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Chicago, IL Age: 55-65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 The memory upgrade worked! April 4, 2016 I wanted to upgrade the operating system on a desktop unit I inherited. I knew OWC had a good reputation. MacSales.com / Other World Computing had the memory I needed for the project. It arrived quickly and was just as easy to install as indicated. It is working wonderfully.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Pittsburgh, PA Age: 45-54 Experience Level: Home User Owned Product: 5-6 months
Rating: 5/5 More memory = new life for my old MacBook Pro April 4, 2016 This replaced the 4gb that came with my then sluggish MBP (bought in Jan '09). I used to cringe at boot time, Photoshop crashes, and seeing the spinning beachball even in my dreams. And now it's just Wow! I had never tinkered with anything inside a computer before but OWC's installation videos are right on the money. Also, customer support responded to my emails promptly. As far as durability, it's hard to tell but I bought this on Oct. 28 and waited to write this review so I'd know if I got a lemon or what. So far, so good!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: PA Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 everything I thought it would be April 3, 2016 Before, my 2010 macbook (2 GB RAM) was slower than a three legged tortoise, especially when I worked online. I'm talking mind numbingly slow internet browsing. Now, it's hard to believe it's the same computer. Performance shifted 180 degrees. I'll admit the computer still gets very hot when I try to watch a movie or run demanding applications, but I would guess the RAM is not the problem in this case? After a month and a half of use, my review is that this is a quality product that was certainly worth the coin.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Good service April 1, 2016 The item was just what I expected and arrived quickly. Very satisfied.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Otway,OH Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 OWC makes upgrading easy April 1, 2016 I recently acquired an Early 09 iMac9,1. After installing a new OS, I found it to be a nice little computer but quite sluggish. After watching OWC's video I decided to tackle the memory upgrade and SSD install myself. I ordered the parts (next time I will get the tool kit too) and they arrived quickly. Following what I had learned in the video, I was easily able to install the SSD and memory modules. The little iMac now literally springs to life. In the future I will always come to OWC for all my Mac needs. Thank you, so much OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Calgary, AB Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Wow!! Amazing quality! March 27, 2016 I recently acquired an old mid-2010 unibody Macbook and decided I wanted to give it a big jump in performance. I went to my local shop and bought the correct RAM for my device and it had my macbook in a crash loop, so I decided to return it and look for something more reputable. I came across OCW with a lot of recommendations and I'm glad I did.

Got this RAM, everything worked flawlessly, also stuck an SSD in there too and man, what a difference. It's way more usable than it ever way. Great investment and will be buying everything mac related from here! Couldn't recommend this site or product more.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Houston, TX Age: 25-34 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Great Upgrade! March 25, 2016 Upgraded my MacBook Pro with ram, battery, and an SSD. It has been sluggish for quite some time. Now it is very responsive and acts like it did when I purchased it new. The videos and how-to's made this upgrade very easy. Glad that I found MacSales & OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Atlanta, GA Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent March 21, 2016 This is an excellent product from OWC that exceeded my expectations. It was easy to install, and it works flawlessly.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Basel, Switzerland Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Easy install March 20, 2016 With the OWC install video, this could not have been easier. I watched it once, executed it as I recalled. All done within the time given - 10 minutes. My laptop recognised the RAM right away so all good from 2GB to 8GB in one easy install and good price!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: SoCal Age: Over 65 Experience Level: Home User
Rating: 5/5 Memory Upgrade March 19, 2016 Upgrading my Imac from 2MB to 8MB memory is what was totally necessary and the chips are doing as I expected. Much more speed!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: San Diego Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 It's work! March 17, 2016 This is exactly what I needed - without buying new Mac.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Age: 55-65 Experience Level: Hobbiest
Rating: 5/5 Great!! March 15, 2016 My compter is so much better to use with the Ram upgrade!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Missouri Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 easy to install March 12, 2016 My MacBook Pro was running VERY slow after upgrading to el Capitan. First I upgraded my memory with these chips. Then I upgraded the HD. I waited until I received the new HD before installing both, which was VERY easy, both because of the OWC video and by Googling written instructions. My laptop now runs like new. The most difficult part of the installation was properly putting all the screws back when reassembling the laptop. Some were easy to screw in, and some were difficult to position. I was glad I waited to install both at the same time, so I didn't have to open the case again.

I would recommend this item to a friend!

OWC Memory 8.0GB 2 x 4.0GB PC8500 DDR3 Mfr P/N: OWC8566DDR3S8GP OWC SKU: OWC8566DDR3S8GP OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day only $51.88
Add to CartOther World Computing OWC8566DDR3S8GP In Stock, Click to Buy Now