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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
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
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
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
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
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 / 5 146 out of 152 (96%) reviewers would recommend this product
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Verified Buyer
Reviewer: Harrycarlin Location: Cary NC Age: Over 65 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Superb company to deal with June 29, 2018 This company is top notch. I ordered two 4g memory cards incorrectly

They took them both back no question and got me the correct one I should jave ordered

Extremely friendly and helpful

Highly recommended

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

Verified Buyer
Reviewer: Shorty2 Age: Over 65 Experience Level: Noob Owned Product: 1-3 months
Rating: 5/5 Wow-what a difference in speed! June 11, 2018 This product was so easy to install and so flawless that I can't believe I waited so long to order it. This is the second time in the life of this ancient laptop that I have turned to OWC for a ram upgrade. It was such a quick installation and the performance is flawless. Your products and support are so good, I will never look elsewhere.

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

Verified Buyer Top 100 Contributor
Reviewer: TheRetiredViking Location: Tri-Cities area TN Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 They work June 7, 2018 Not a whole lot to say; memory works or it doss not. I installed the memory, my Mini booted right up, and runs fine. This was installed as part of a heavy duty upgrade that included an SSD.

Customer Videos:

Verified Buyer
Reviewer: DudesMom Location: Mission Viejo, CA Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 My Macbook Pro is fast again! May 30, 2018 I updated my early 2011 MBP to High Sierra OS and it immediately became very sluggish and I would get very delayed click responses on everything. I was pretty bummed thinking I would need to spend a ton of money to get my laptop back to normal. I called up my friend, Jim, who has worked on my personal and work computers multiple times and he suggested buying more memory from here. I am so happy I did! The price was very reasonable, I got a tracking number very soon after I placed my order, my order arrived in less than a week, and it was well packaged to avoid any damage. Jim installed the memory in about 20 minutes and suggested a few more things to speed up my laptop and I'm back in business again. I may be back to get a new hard drive as suggested for the older models of MBP.

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

Verified Buyer
Reviewer: Didimus Location: Japan Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Product performs as expected May 12, 2018 Very happy with the product. Performs as expected and was easy to install.

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

Verified Buyer
Reviewer: ITrunner Location: Tucson, Arizona Age: 25-34 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Works Great May 3, 2018 Over the years i've had terrible luck with other brands of 3rd party ram for apple machines, but these kits consistently work without any issues. Very easy to install and recommend them with complete confidence. Purchased 5 or 6 of these over the years to upgrade machines, no issues.

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

Verified Buyer
Reviewer: Mac305
Rating: 5/5 Great product April 29, 2018 Easy to install, works great - no problems. Shipped well and packaged well. I definitely recommend.

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

Verified Buyer
Reviewer: Magikarma Location: AZ Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Upgraded with no issues April 9, 2018 Upgraded my 2011 iMac and this was very reliable memory!

Customer Videos:

Verified Buyer
Reviewer: CryptoZuess Location: Fort Worth, TX Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 First Class All The Way April 8, 2018 The entire shopping experience and customer service was off the charts Thanks for the great pricing on the memory. It arrived very quickly and was exactly what I needed to turbo charge my iMac. I am not sure I could ask for more. Now I have a place to go immediately when I have another need for my Macs.

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

Verified Buyer
Reviewer: thewrightstuff
Rating: 5/5 Easy to install, made my laptop run much faster than before!!! February 7, 2018 It literally took less than 30 seconds to install once you get the backing off but it made my 2011 MBP run much faster and Microsoft Word takes 5 seconds to load instead of 30 like it did before!

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

Verified Buyer
Reviewer: evodawg Location: Southern California Age: 45-54 Experience Level: Hobbiest Owned Product: 1-3 months
Rating: 5/5 Easy Peasy Great Experience! February 4, 2018 Price was right and shipping fast. Could not have had a better experience..Even told my friend that works as a tech for Apple to start referring this site to customers with hardware problems.... Should be getting business from him...

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

Verified Buyer
Reviewer: Fernecho Location: Trelle (Ourense - Spain) Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Fantastic RAM upgrade for MacBoock Pro January 29, 2018 Hello from Spain, Recommended for all users of MacBook Pro (13-inch, Early 2011), 2.3 GHz Intel Core I5. If you have upgraded the operating system to MacOS Sierra or MacOS High Sierra, then it is highly recommended that you increase the RAM of your MacBook Pro.

Before my Mac was slow and now with the upgrade of RAM 4 GB ---> 8GB has returned to be fast, I am very happy with this operation. Thank you so much for everything.

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

Verified Buyer
Reviewer: Boldtrek Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Super happy January 22, 2018 Easy to shop for a novice. Quick shipping. So happy with the results!

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

Verified Buyer
Reviewer: Redwinemaker Location: Cicero, NY Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 I received great tech assistance January 6, 2018 I had a little trouble getting my Mac mini to recognize all 8 gigs of ram. It only recognized 4 gig. I called tech assistance and Jason walked me through and we fixed the problem. Jason was great!! My computer is now running as fast, or faster, than new. Thank you!

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

Verified Buyer
Reviewer: ladyhawke3099 Location: Frederick, MD Age: 45-54 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Just what I needed! January 2, 2018 My productivity was being impacted in a very negative way by my slow Mac. After determining that it was the memory (or lack thereof), I purchased from MacSales.com. With the suggested tools & excellent how-to videos, I was able to open my Mac, install the new memory and even return the old memory for a rebate. I couldn't be happier with the speed of my Mac now. I can actually open more than 1 application at a time and get a lot more accomplished in a shorter period of time!

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

Verified Buyer
Reviewer: Clairvoyantexplorer Location: Hawaii Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Simple, Fast and Easy Transaction January 1, 2018 Aloha! I have not ordered much over the years, but when I need for my MacBook Pro or my wife’s MacBook Air, you guys are the ones I will go to for quality, reasonable prices, good customer service and good shipping times and cost I consider you an ally in the electronics world! Many thanks!

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

Verified Buyer
Reviewer: WD40 Location: Everett, WA Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Amazing improvement... December 29, 2017 My poor old MacMini's performance was anemic at best...With 8 Gigs it's greatly improved...Easy instructions to exchange the memory and was up and running in no time...Still running like a champ...Well done folks!

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

Verified Buyer
Reviewer: chrisorct Location: Winston Salem, NC Age: 35-44 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Perfect and a great price December 28, 2017 This was my first time changing over the RAM on my Mac (or any computer) and I was a little nervous I was ordering the wrong part or doing it wrong...and all that was put to rest with the ease of ordering and making sure I ordered for my SPECIFIC Mac. I'm using the Mac now and it's much, much faster! I'm looking here in a couple months to order a SSHD!

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

Verified Buyer
Reviewer: Bringiton Location: USA
Rating: 5/5 OWC - why go anywhere else? December 26, 2017 You can buy RAM a lot of places, but the value-added advice, video guidance and reliability always takes me back to OWC.

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

Verified Buyer
Reviewer: BigScott Location: NH Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Best three minute upgrade ever November 13, 2017 Just pop the cover off the iMac, slide in two DIMMs, and seal it back up. With these very affordable upgrades you can breathe new life into an old Mac in no time.

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

Verified Buyer
Reviewer: EllenFromNY Location: NY Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Good deal November 5, 2017 My MacBook Pro laptop runs quite a bit faster since I upped its' memory using this product. Came on time, seems to be working fine.

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

Verified Buyer
Reviewer: Wrighteous Location: Los Angeles Age: 25-34 Experience Level: Hobbiest Owned Product: 1-3 months
Rating: 5/5 Ram upgrade gave new life to MBP 13" 2011 October 30, 2017 My wife's Macbook Pro (13" late 2011 model) became almost unusably slow after upgrading to Yosemite. Rather than committing hundreds of dollar to a new/refurb laptop, I explored upgrading the RAM. I bought two 4GB chips to max out her RAM capacity, and it's since been running much more smoothly. Highly recommend maxing out your RAM for older MBPs. Perhaps we kicked the can down the road in terms of a new computer, but that's OK by me.

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

Verified Buyer
Reviewer: Aquaz
Rating: 5/5 Great product October 18, 2017 I needed to increase the RAM of my old MacBook Pro after replacing my hdd with a sdd. No problem at all, all working great and my mac is as fast as a new one. Best deal ever!

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

Verified Buyer
Reviewer: zhongruige
Rating: 5/5 Breathing new life into an old Mac October 9, 2017 Finally upgraded the stock RAM in my early 2011 MacBook Pro and it's been like night and day. Highly recommend it to anyone looking to upgrade!

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

Verified Buyer
Reviewer: FCPR Location: San Juan, PR Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 It's a new Mac Mini! October 1, 2017 After upgrading my 2011 Mac Mini with 8GB of RAM and a solid state hard disk, it's like having a new Mac Mini. It runs as smooth as my 2016 MacBook Pro. It just incredible how performance improved.

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

OWC Memory 8.0GB 2 x 4.0GB PC10600 DDR3 Kit Mfr P/N: 1333DDR38S08 OWC SKU: OWC1333DDR38S08 OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $83.98Matched Kit for $69.99
Add to CartOther World Computing 1333DDR38S08 In Stock, Click to Buy Now
Additional Capacities & Kits:
  • 4.0GB
    • Ships: Same Day
    • Only $37.99
    • OWC Price $37.99
  • 8.0GB (2x4GB)