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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 / 5 618 out of 634 (97%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Zoombie Location: Waipahu, HI Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great Product February 10, 2017 Items was as advertised and was shipped super fast. Really easy to install and works great.

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

Verified Buyer
Reviewer: COPD Location: Florida Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 I would buy again if the need arises. February 7, 2017 I would recommend this item to a friend! Customer Videos:
Verified Buyer
Reviewer: Apod Location: Charlotte Age: 35-44 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Awesome! Breathed Life into a 08 MacBook Pro February 6, 2017 Well worth the money. Machine works twice as fast. Thank you!!!

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

Verified Buyer
Reviewer: AkiraHi808 Location: Honolulu, Hawaii Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Works like a charm February 2, 2017 I installed these in my Mid-2010 MacBook and my system no longer has to swap. It makes a big difference with the latest macOS.

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

Verified Buyer
Reviewer: paulbear Location: Richmond, VA Age: 18-24 Experience Level: Gamer Owned Product: 3-4 months
Rating: 5/5 Amazing, I will never regret it January 29, 2017 This is an amazing and cheap upgrade for a computer it will speed up your laptop. Although this is a great upgrade the 16 GB of ram is even better, my roommate installed that one and i regret not going for the full 16GB. I have a mid 2012 macbook pro

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

Verified Buyer
Reviewer: MyMac17 Location: Long Island, NY Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Very Easy to Install January 28, 2017 The Other World Computing website made it easy for me to choose the correct memory chips for my MacBook Pro 17" mid 2010 laptop. Most especially, the installation video gave me the confidence to install it. My laptop is functioning perfectly. Thanks OMC.

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

Verified Buyer
Reviewer: JimmyO Location: California
Rating: 5/5 Improved performance January 27, 2017 Really improve performance of my wife's computer

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

Verified Buyer
Reviewer: Machomer1 Location: Los Angeles, CA Age: 45-54 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 Quality upgrade works as expected January 26, 2017 I maxed out my memory capacity, from 4GB to 8GB, on my 2011 Mac Pro "15. The website makes the process of choosing the correct product very simple and easy to identify. I also called cust. serv. to confirm that I was purchasing the correct product and whether I could increase memory more than 8GB. They were friendly, helpful, and informative. I was also pleased with the rebate process of my old memory cards.

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

Verified Buyer
Reviewer: Bionico
Rating: 5/5 Good product January 19, 2017 I would recommend this item to a friend! Customer Videos:
Verified Buyer
Reviewer: Spitfiremkiii Location: Columbia MD Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Easy upgrade January 16, 2017 Followed the install video even though I've done this before. Easy install. As recommended by some reviewers I cleaned the two blowers of excess dust. All in all very pleased with the upgrade.

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

Verified Buyer
Reviewer: Javier Location: Javier Age: 45-54 Experience Level: Power User Owned Product: 5-6 months
Rating: 5/5 Reliable memory for Macs January 16, 2017 I bought these memory sticks to add some more RAM to my iMac, since the prices that Apple charges for memory are insane. All I have to say is that they were perfect for my iMac, and work flawlessly.

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

Verified Buyer
Reviewer: LucaIT Location: Italy Age: 25-34 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Excellent and very easy to mount January 14, 2017 Upgrade done in 10 minutes. Macbook Pro late 2010, after this upgrade is faster. Good delivery time in Italy. Great tutorial and help about how to do it.

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

Verified Buyer
Reviewer: Longhorn Location: Texas Age: Over 65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Great product! January 11, 2017 I purchased this 8GB RAM upgrade for our MacBook Pro. Item was easy to find (as long as you have all necessary info from your computer prior to search), the video on the OWC website was excellent and made the installation very easy. I completed the installation in about 5 - 10 minutes, fired up the computer, everything works fine and it is now noticeably faster. Thank you OWC!

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

Verified Buyer
Reviewer: elgatosmac44 Location: Franklin NC Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Perfect fit, worked great January 10, 2017 These 2x4 ram came very well packed, easy instal and worked perfectly. I recommend the highly.

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

Verified Buyer
Reviewer: MacFan4Ever Location: CA Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Great Products backed by Excellent Support! January 10, 2017 I decided to give my older (but still vibrant) Mid 2009 MacBook Pro some help by getting it's tired, old, butt into better shape. I happened onto MacSales by chance, liked what I saw and ordered a 1 TB SSD and a RAM upgrade from 4gb to 8gb (it's maximum). I'm terrified of opening my computer fearful I will only do more damage and incur greater costs in repairs. I watched the videos on MacSales and they were both straightforward and seemed simple as well. I had no problem installing the new RAM - which gave me the courage to tackle the Hard Drive the week after. Whenever I had a question or hit a snag, MacSales Support personnel were available all the time by chat or phone and all of them were helpful and friendly. The laptop has gotten a much needed kick in the pants and both the new RAM and SSD have performed brilliantly. I'm a more than happy customer and I will be back when I'm ready to perform similar magic on my Mac Pro. Cheers to Macsales, their great products and excellent support!

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

Verified Buyer
Reviewer: vargad Location: Sask Canada
Rating: 5/5 my Imac responds faster January 8, 2017 I would recommend this item to a friend! Customer Videos:
Verified Buyer
Reviewer: Capnted Location: Lake worth, fl Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 My mid 2010 MacBook Pro is reborn January 5, 2017 After installing sierra I thought my mbp was dead. After all, it is more than 6 years old. It was painfully slow & apps were quitting left & right. Chrome was unuseable. I took a chance and installed the full complement of ram, an ssd, and a new battery because mine was swollen & the trackpad didn't work. Now I'm in love with my Mac all over again--for well under $400. Installation was super easy & the update was seamless. I now have 500 gig internal & my old drive is external. I could have installed both internal but like having the DVD. Couldn't be happier with my purchase. It boots fast and runs all the apps I can throw at it.

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

Verified Buyer
Reviewer: Avillan008 Location: Miami, FL Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 4/5 Great Update January 5, 2017 I've had my mac book pro 13inch since summer of 2010. Started to really bog down in the past year through the updates. These brought it back to life and loved the fit and finish.

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

Verified Buyer
Reviewer: MrPaul Location: NH Age: 35-44 Experience Level: Home User Owned Product: less than a month
Rating: 4/5 Easy installation, check the number of memory slots on your Mac first January 5, 2017 My late 2009 iMac came with 4GB of memory, and I wanted to upgrade it to 8GB. I thought I would have to replace the old memory with the new because I thought the iMac had only 2 memory slots when in fact it has 4. With the new memory, my iMac has 12 GB of memory, which is more than enough. I could have saved some money if I purchased 4GB instead of 8.

The installation was very easy. There was a lot of lint and dust in the memory compartment, so I would recommend cleaning that with compressed air while you have it open.

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

Verified Buyer
Reviewer: crossy
Rating: 5/5 Works Great January 3, 2017 So far so good.

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Verified Buyer
Reviewer: MeandMyMacs Location: Houston, TX Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Excellent! January 3, 2017 Excellent product! Preforms better than expected! Thank you

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

Verified Buyer
Reviewer: daveo26 Location: Texas Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Really speeds mac book up! December 28, 2016 Installing memory was easy; has brought life back to my mac book pro!

Customer Videos:

Verified Buyer
Reviewer: RalphKy22 Location: Woodstock,IL Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 PC 8500 DDR 3 Kit December 27, 2016 8.0GB (2x 4GB) PC-8500 DDR3 kit installed and was immediately recognized by operating system. Immediately saw a performance jump with the 8.0GB ram installed. I chose local pick-up and this couldn't have been easier! Thanks OWC!

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

Verified Buyer
Reviewer: Vapor Location: Earth Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 easy upgrade December 25, 2016 Since installing my mid 2009 macbook pro is running along nicely.

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

Verified Buyer
Reviewer: ronJ Location: portland,maine Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 fast!!!! December 25, 2016 Convenient fast and cheap. I saw the ram and ordered using my PayPal account and got my ram in 3 days free shipping. Was great.

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OWC Memory 8.0GB 2 x 4.0GB PC8500 DDR3 Mfr P/N: OWC8566DDR3S8GP MacSales.com SKU: OWC8566DDR3S8GP OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day only $68.99
Add to CartOther World Computing OWC8566DDR3S8GP In Stock, Click to Buy Now