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Product Specs:
OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications.
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
MacBook (Early 2009)
(January, 2009)
Model ID: MacBook5,2
2.0GHz
MacBook
MacBook (Late 2008)
(October, 2008)
Model ID: MacBook4,1
2.1GHz
MacBook
MacBook (Early 2008)
(February, 2008)
Model ID: MacBook4,1
2.1GHz, 2.4GHz
MacBook
MacBook (Late 2007)
(November, 2007)
Model ID: MacBook3,1
2.0GHz, 2.2GHz
MacBook Pro
MacBook Pro (17-inch Late 2008)
(October, 2008)
Model ID: MacBookPro4,1
2.5GHz, 2.6GHz
MacBook Pro
MacBook Pro (17-inch Early 2008)
(February, 2008)
Model ID: MacBookPro4,1
2.5GHz, 2.6GHz
MacBook Pro
MacBook Pro (17-inch Mid/Late 2007)
(June, 2007)
Model ID: MacBookPro3,1
2.4GHz, 2.6GHz
MacBook Pro
MacBook Pro (17-inch Core 2 Duo)
(October, 2006)
Model ID: MacBookPro2,1
2.33GHz
MacBook Pro
MacBook Pro (15-inch Early 2008)
(February, 2008)
Model ID: MacBookPro4,1
2.4GHz, 2.5GHz, 2.6GHz
MacBook Pro
MacBook Pro (15-inch Mid/Late 2007)
(June, 2007)
Model ID: MacBookPro3,1
2.2GHz, 2.4GHz, 2.6GHz
MacBook Pro
MacBook Pro (15-inch Core 2 Duo)
(October, 2006)
Model ID: MacBookPro2,2
2.16GHz, 2.33GHz
iMac Intel
iMac (24-inch Mid 2007)
(August, 2007)
Model ID: iMac7,1
2.4GHz, 2.8GHz
iMac Intel
iMac (20-inch Mid 2007)
(August, 2007)
Model ID: iMac7,1
2.0GHz, 2.4GHz
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 32 out of 33 (97%) reviewers would recommend this product
Verified Buyer
Reviewer: Anonymous Location: singapore Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Hard-to-find memory module found easily December 27, 2015 OWC was the only place I could find the memory module I needed for my old MacBook. The ordering process was smooth and I received my item within days of ordering. Great job!

Verified Buyer
Reviewer: Anonymous Location: Washington State Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Upgraded 2007 iMAC to 6GB with the 4GB SO-DIMM December 11, 2015 Bought this 4GB DIMM to upgrade my 2007 iMAC to 6GB and system runs smoothly. So far no issues with my system.

:)

Norby

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Mexico DF Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Just Great December 2, 2015 This Ram Upgrade to my aging MacBook White, was just in time to keep it going. Just Great as all products I have purchased from OWC

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: San Diego, CA Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Good info, great performance. November 13, 2015 Elise helped me figure out which chip was right and got it to me in two days. I plan to return to OWC for all my Mac sales needs.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Everything worked out perfectly fine! July 20, 2015 I would recommend this item to a friend!
Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Greenville SC Age: 45-54 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 Affordable upgrade June 28, 2015 Todays modules are much more affordable and you can have a serious upgrade for much less money than in the past. OWC offer not only memory upgrades bit also video tutorials of how to install is a complete service. Shipping is pretty fast

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Palo Cedro, CA Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 AWESOME April 25, 2015 After upgrading my iMac, the results were outstanding, faster response!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Cupertino, CA Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Reasonable price, reliable, free shipping March 28, 2015 I've used OWC memory for all our Macs over the years. It always works and is reasonably priced. The USPS free shipping arrives promptly. This order was no exception. More memory and now I'm ready for an upgrade to Yosemite. The on-line sales / chat folks have always helped in matters of mixing & matching different memory modules sizes for each model.

Did I mention the free shipping ;^)

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: CT Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Can't beat more memory February 6, 2015 I thought, and Apple claimed, my 2007 iMac's memory maxed at 4GB, but recently OWC's webpages said 6. Strange. I had 2+2, purchased at OWC 7 years ago, and was informed I could replace one of the 2's with a 4. I was frequently running into slowdowns because of memory limitations, so bought the 4GB module, followed the easy installation directions and now have 6. Yosemite is supposed to be better at memory management, something I have doubts about. In any case, I'm pleased with the expanded memory.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: panama city, panama Age: Over 65 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 it's like my late 2007 iMac is like brand new February 2, 2015 I needed to get more memory in order to update to OS X Yosemite. The module came quickly and was easy to install and I can't believe I didn't do it sooner.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Phoenix Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Awesome January 31, 2015 Awesome. No problems. Works great. Compatible as expected.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Tech for a non-tech geezer December 21, 2014 Terrific live chat support guided me right to the product I needed. Quickly shipped. Worked perfectly. Badda boom, badda bing. Thanks OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Millbury, MA Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Mid 2007 iMac (Alu) Reborn November 25, 2014 I thought it was time to buy a new Mac, due to its sluggishness. Wrong!

Adding 4GB of RAM and replacing the 5400 rpm HD with an SSD has breathed new life into it. To quantify; opening Adobe Photoshop took 1:00, but now takes :05. InDesign? From 2:00+ to about :10. Illustrator? From 1:30 to about :07. Booting up went from 3:00+ to about :30.

This indicates that the main bottleneck for computers is mechanical HDs, which appears to be a little-known secret. Save your money and invest in these upgrades...you'll be thrilled with the results!

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

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 RAM Upgrades Are Recommended October 18, 2014 First, let me brag on OWC. They are HIGHLY beneficial and their assistance has on numerous occasions not only helped me reach a decision, but done so efficiently, courteously and informatively. Now, I purchased the 4gig RAM stick for my MacBook Pro 3,1 and it has performed very well. It is an odd pairing in that it isn't a "matched" pair, as my MBP came with 4 gigs of RAM preinstalled in the form of 2x2gig sticks. So, now that I'm running 6gigs in the form of one 2gig (Apple) and one 4gig (OWC) stick I no longer am able to achieve "128-bit memory addressing." Initially, this was a concern as I wondered what adverse effects, if any, this might have on my laptop. Through multiple chats with OWC employees I was able to assuage any concerns in that the benefit of having more RAM (2 extra gigs in this case) would outweigh any performance loss from running a "mismatched" pair. So, that was my conclusion, and it has proven to be true. Boot time and overall application responsiveness have increased, enough for me to recommend the upgrade. The only negative I can possibly cite is that this upgrade, albeit not officially endorsed by Apple since they state that maximum RAM for a MBP 3,1 is only 4 gigs, causes the fans on my unit to operate more often than they do when the 4 gigs I used to have were installed. This translates into a marginally "hotter" unit on the underside of my laptop. But that's all. Just a heat increase that makes fans run a bit more often. Bottom line, I am VERY supportive of OWC as they have been VERY supportive to me. :)

I would recommend this item to a friend!

Response from MacSales.com, Executive October 20, 2014 Thanks for the review. Note that the slight heat increase is not likely from the memory itself but from the Mac now working harder, putting more processor cycles to work since as it now has the additional memory to utilize and complete tasks faster with.
Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Crestline, CA Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Keeping it Alive October 18, 2014 Upgraded my 2008 Macbook Pro to 5Gb total now. As long as it can download the newest OS from Mac, my old reliable will continue to live. Programs run very nice with no issues.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Lloret de Mar - Spain Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Works fine September 5, 2014 Bought this module to increase mem in my old MacBook ( late 2007) until maximum allowed , 6 Gb. Works perfect! Cheaper than in Spain!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: San Francisco, California Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Perfect match for OWC 2GB + 2GB Upgrade August 30, 2014 The 2=2 worked great on my mid-2007 iMac and handled Mavericks but it felt like I was running on empty so I opted to add the pricier 4GB memory.

I was holding my breath to be honest since it wasn't the 2GB + 4GB kit.

It works perfect! It's been tested and retested and the match was made in digital heaven. Worth the cost since now I can open Logic Express, Safari, Pages, and Garage band and still have room to move.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Denver,CO Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Ram up on MacBook Pro August 11, 2014 I got 4GB of ram to go with my 2GB for total of 6MB and the difference is great my web page opens faster,any work I do in Photoshop goes faster.I enjoy this product.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Hoboken, NJ Age: Over 65 Experience Level: Home User
Rating: 5/5 Great product, easy installation July 25, 2014 Prompt delivery, easy installation after reviewing OWC video, and the memory has performed flawlessly. Highly recommended.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: MD Age: 55-65 Experience Level: IT Professional
Rating: 5/5 Good RAM-Great Price July 8, 2014 This RAM is a great value. I do a lot of work on Macs and PC's, and this is a quality product. Always works and never defective.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: New York Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 4.0GB PC-5300 DDR2 667MHz SO-DIMM 200 Pin Memory Upgrade Module July 3, 2014 I should have done this a long time ago.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Virginia
Rating: 4/5 RAM Upgrade June 12, 2014 Pretty straightforward installation. RAM worked as expected. RAM pricing has gotten much more expensive recently, that would be my only knock.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Canada
Rating: 5/5 very good May 15, 2014 This product helped me speed up my old iMac

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Las Vegas, NV Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Works as advertised! June 11, 2013 I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous Location: Saudi Arabia , RUH Age: 25-34 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Thank You March 24, 2013 I've received the RAM and its working perfectly as you mention in the website my macbook pro 17 inches intel core 2 due 2.4 now oprating 6GB RAM it was my first deal and m very proud o being one of your customers. Regards,,

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

Verified Buyer
Reviewer: Murph Location: Florida Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Works like a charm February 25, 2013 Followed the video opened the iMac removed old 2GB chip, replaced it with new 4GB chip, closed up the access panel and plugged in the power. Happiness abounds 6GB of ram and no problems!!!!!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Robert2173 Location: York University Age: 25-34 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Extremely satisfied November 16, 2012 I continue to marvel at the professionalism, timely and courteous Technical Support and products supplied by Macsales. After installing my newly acquired 4GB DIMM my iMac is now super-fast. Other Professors here at York University also hold Macsales in the highest regard. I look forward to many more purchases in the future.

I would recommend this item to a friend!

Reviewer: fpdesign Location: ITALY Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Macbook Pro 4.1 = 8GB Ram November 7, 2012 Macbook Pro 4.1 support 8GB of RAM under SNOW LEOPARD Buy two 4.0GB PC-5300 DDR2 667MHz SO-DIMM 200 Pin Memory and try. Amazing OWC it's the best

I would recommend this item to a friend!

Verified Buyer
Reviewer: BoogerDoc Location: Ada, OK Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 So easy to pick out what you need September 20, 2012 Macsales makes it very easy to excise what you need for your Mac. I have used it many time on diffrent items and have been happy every time. I have recommended it to several people wanting to upgrade their Mac.

I would recommend this item to a friend!

Verified Buyer
Reviewer: olds48 Location: New Jersey Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Installed easy May 18, 2012 The module installed easy and I could see the difference in speed immediately. It does seem to run twice as fast as before. I installed it this morning and so far it's great.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Didyah Location: Oakland, CA Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 Lion is finally running March 20, 2012 Running Lion on MacbookPro 4,1 with only 2Gb of mem was killing my machine. Ordered this Thursday night-free ground shipping, arrived Monday. Replaced the top 1gb mem stick. Took 5 minutes to install. Now everything on the machine is super snappy!. It's like a new laptop. If price was lower like the newer model memory I would give it a solid 5 stars, but I'm very happy of the increased performance. Next upgrade, SSD hard drive

I would recommend this item to a friend!

Verified Buyer
Reviewer: UniversalSuffrage Location: Brooklyn, NY
Rating: 5/5 The Workaround. August 30, 2011 Second RAM slot in my MacBook was busted from a nasty fall. When I upgraded to Lion, I tried two 2GB modules and discovered the bad slot issue. This single 4GB stick works like a charm in the one working slot. Thanks, OWC!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Wally Location: Palo Alto, CA Age: 45-54 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Great knowledgable customer service. August 26, 2011 I needed to upgrade my RAM capacity on an iMac in order to upgrade my operating system. According to Apple the max RAM I can install is 4GB, pretty much the minimum suggested for the Lion operating system. Looking at the OWC web site it appeared as though they suggested I could add 6GB to my Mac. I used the OWC technical chat window to confirm that I could install 6GB. They told me they were aware of Apple's stated limitation, but that they had installed 6B in that model iMac and it worked. With that information I ordered the memory (It came in 3 days) and installed it. Works great. My hats off the OWC. It's great to deal with people who really know what their talking bout.

I would recommend this item to a friend!

OWC Memory 4.0GB 4.0GB PC5300 DDR2 Mfr P/N: OWC5300DDR2S4GB OWC SKU: OWC5300DDR2S4GB OWC Memory Upgrade Module Lifetime OWC Limited Warranty Ships: Same Day only $107.99
Add to CartOther World Computing OWC5300DDR2S4GB In Stock, Click to Buy Now