Name: 8.0GB PC3-8500 DDR3 1066MHz SO-DIMM 204 Pin SO-DIMM Memory Module PC3-8500
Brand: OWC
SKU: OWC8566DDR3S8GB
Price: 42.99 USD
Availability: InStock
Rating: 4.97 (749 reviews)

OWC Special Offer Available

$70.99 off *NOW* Get Parallels Desktop Pro Edition - Windows/Multi OS Compatibility software for Mac - Only $29.00 with select OWC SSDs, HDDs, Memory, External Storage, and Optical Drives! (Limit 3 rebates, 1 rebate per qualifying item)
Must purchase with: PPDPROSUB1Y-REB29

8.0GB OWC Memory Upgrade

8.0GB PC8500 DDR3 1066MHz 204 Pin

OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program | 30 Day Money Back Guarantee

Product Specs:

Technology: DDR3 SDRAM
Density: 8GB (8192MB)
RoHS: Yes
Pin Count: 204-pin
Op. Temp.: 0C to +85C
Data Rate: DDR3-1066
Speed: PC3-8500
CL: CL = 7
Cycle Time: 1.875ns
Voltage: 1.5V
ECC: Non ECC
Module Ranks: Dual Rank
Register: Non Parity
Low Noise 8-Layer PCB
Meets and/or Exceeds Apple/Intel Specifications
Fully compliant with JEDEC specifications
Free Installation Videos & Manuals
Warranty Safe Upgrade.
OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program
Why do I need more RAM?

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.

- Please allow up to 14 Days from the time we receive your memory for testing and rebate processing.
- The OWC Rebate is for up to the same number of memory modules purchased and must be in working order.

COMPATIBILITY
Reviews
RATINGS

Note: Apple OS 10.7.5 or Later REQUIRED for utilization of more than 8GB of total system memory.

This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs

MacBook (Mid 2010)

(May, 2010)

Model ID: MacBook7,1

2.4GHz

Detailed specs

MacBook Pro (13-inch Mid 2010)

(April, 2010)

Model ID: MacBookPro7,1

2.4GHz, 2.66GHz

Detailed specs

Install Videos

Mac mini (Mid 2010)

(June, 2010)

Model ID: Macmini4,1

2.4GHz, 2.66GHz

Detailed specs

Install Videos

Mac mini (Mid 2010 Server)

(June, 2010)

Model ID: Macmini4,1

2.66GHz

Detailed specs

Install Videos

iMac (27-inch Late 2009)

(October, 2009)

Model ID: iMac11,1

2.66GHz i5, 2.8GHz i7

Detailed specs

Install Videos

PC Laptops

Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

Reviews

"After memory was installed ... it was shocking how much faster the system brought up the OS." - Jeffrey Powers, Geekazine

Customer Ratings

Write a Review 4.9 / 5 729 out of 749 (97%) reviewers would recommend this product

1 2 3 4 5 6 7

Verified Buyer

Reviewer: MacDaddy Location: NJ Age: 55-65 Experience Level: Home User Owned Product: 3-4 months

Rating: 5/5 Low price, Great service, & WOW!!! October 23, 2020 My daughter's Macbook pro was running terribly slow. With the help of OWC I was able to max out her RAM and get her a faster computer. OWC made it less expensive and easy to do with streaming video service taking me step by step through the process!! BONUS! the old RAM I removed was compatible with an old iMac I had, that got an upgrade too!! THANK YOU OWC YOUR AMAZING!!!!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: ABDB Location: Japan

Rating: 5/5 For a Core 2 Duo Mac Mini Server September 22, 2020 Once I upgraded the firmware, this kit worked perfectly. Nice to be able to give life to this old machine.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: Lulu Age: 25-34 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 perfect upgrade September 8, 2020 This was a perfect upgrade to make to my mid-2009 Macbook pro 15 inch. Helped to make my old laptop work like new.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Manimal Location: Boynton Beach, FL Age: 35-44 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 It's ALIVE!!! September 1, 2020 I got the 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010 for my wifes MacBook 2010 along with 2.0TB OWC Mercury Extreme Pro 6G 2.5-inch 7mm SATA 6.0Gb/s Solid-State Drive. It took an unusable piece of plastic and transformed it into a blazing rocket. All 16GB were recognized by the MacBook 2010. She should be able to get a few more years of use out of it now. Installation was very easy thanks to the handy videos hosted by OWC.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: DPix Location: WMass Age: Over 65 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 The right product for the best price with the best quality August 30, 2020 Ordering was easy OWC directed me to the right product for my iMac. I'm good with the price and the install videos eliminate any questions

I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC-8500 DDR3 kit for all Apple iMac 21.5" and 27" Models (Oct/2009). Customer Videos:

Verified Buyer

Reviewer: Salva Location: Clewiston Age: Over 65 Experience Level: Home User Owned Product: over 6 months

Rating: 5/5 Easy to install. August 29, 2020 I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer Top 250 Contributor

Reviewer: Artysan Location: Fort Lauderdale, FL Age: 55-65 Experience Level: IT Professional Owned Product: over 6 months

Rating: 5/5 Top quality DIMMs, reliable seller August 24, 2020 OWC has been my go-to for RAM for 15 years +. Dozens of examples, no failures, great well-researched site to locate my product every time. I don’t even look elsewhere.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: JoeJoeJoe Location: Des Moines Age: 35-44 Experience Level: Hobbiest Owned Product: less than a month

Rating: 5/5 Outlasted my computer August 22, 2020 I put this ram in both my one 2010 macbook and my mother's 2010 mac mini. The ram outlasted the computers. I recycled the computers but gave the ram to friends who could still use it.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Patrick3 Location: Canada Age: 25-34 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Worth the investment August 10, 2020 I have a 2010 Macbook and upgrading the memory has made a world of difference. I believe OWC is the only compagny that makes compatible 16GB memory for 2010 Macbooks so don't look anywhere else.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: Fieldjockey

Rating: 5/5 Product worked from the get go August 6, 2020 I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: K1dW1K Location: Torrance, Ca Age: 45-54 Experience Level: Hobbiest Owned Product: 1-3 months

Rating: 5/5 OWC Ram has never failed me. July 10, 2020 This is probably my 3rd set of ram from owc over the years and the quality has never failed me. Highly recommended!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Drive4Fun Location: Hoboken, NJ Age: 45-54 Experience Level: IT Professional Owned Product: over 6 months

Rating: 5/5 Great set of 4 memory units, revived my iMac July 10, 2020 I was wondering whether I should trash my old iMac from late 2009. Then I decided to try to move it to Linux and upgrade a little bit, so I bought these 16 GB (4x4GB) and an SSD and now I have an old new iMac, which works great with Linux and delivers performance, which I never experienced with Mac OSX before.

If anyone decider to upgrade memory with these units, my recommendation is to also get "DIY Bundle 1.0TB OWC 3G SSD and HDD Kit for Late 2009 - 2010 iMacs" or the 2TB one. They are bringing a new life in your iMac and you don;t have to recycle it.

I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) PC-8500 DDR3 kit for all Apple iMac 21.5" and 27" Models (Oct/2009). Customer Videos:

Verified Buyer

Reviewer: drbobcs Location: Texas Age: Over 65 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 It Just Works July 4, 2020 I always trust OWC. Find the product for my computer, order it, it comes, and it works. Always. Have an install question, the videos are complete. Gives me all I need to know.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: PSpitsen Location: Orange County, CA Age: Over 65 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 More memory equals better performance July 4, 2020 Recently received my 32 MB upgrade kit for my 2009 iMac. Installation was a breeze as I used the streaming video from OWC's website for my instructions. I have always purchased my computer memory from OWC through the years. Never had any issues at all and will continue to purchase into the future.

I would recommend this item to a friend! This review is from 32.0GB (4x 8GB) PC3-8500 DDR3 kit for Late 2009 iMac11,1 models.. Customer Videos:

Verified Buyer

Reviewer: MacFan76 Age: 25-34 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 Exactly what I needed for a 2010 Macbook Pro 7.1 July 3, 2020 Running 4GB of Ram in the year 2020 can be a bit underpowered at times. Making the change to 8GB made a HUGE difference! It's especially noticeable when running multiple tabs or apps. It breathes new life into an old system. I wish I would've done it sooner, and it was incredibly easy to install. I highly recommend this product, and this website in general!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: evelyn

Rating: 5/5 Extended life of my 2009 27” MAC July 3, 2020 The early 2009 27” MAC started having frequent whirling ball issues. Doubling the RAM purchased from OWC solved that problem. The 2009 is not equivalent to the newer models but with the doubled RAM and some care to get rid of useless files it works just fine. Thank you OWC for your fairly priced good quality products and you excellent, friendly tech support too.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: coffeedrinker01 Location: Villa Park, IL Age: 45-54 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 8.0GB (2x 4GB) PC-8500 DDR3 June 13, 2020 Improved the MacBook 2009 for my wife! She is happy with it because no more slow system!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: kdg12 Location: Greensboro, NC Age: 55-65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Ram upgrade worked perfectly May 15, 2020 I bought 8GB ram from a seller on eBay that did not work in my 2009 MacMini, So, I bought from OWC and it worked perfectly right out of the package.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Azza Location: United Kingdom Age: 25-34 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Very fast May 11, 2020 Brought my MacBook to life and is now usable. What a difference!

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: Siamak Age: 55-65 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Gave a new lease of life to my old mac April 18, 2020 Just Brilliant. Thanks.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Exvandal Location: Sunshine State, FL Age: 45-54 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 The Mac Mini lives! April 2, 2020 Added this to an orphaned Mac Mini (late 2009) w/ 2GB memory.

Shortened boot time dramatically and gave the Mini new life!

Now to add an SSD....

Thanks OWC and macsales!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: jthj Location: kc, mo Age: 35-44 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 great product January 28, 2020 works as it should have had zero issues, just what i know to expect from owc

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: atb2003 Location: Denver, CO Age: 25-34 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Mid-2010 model running like new!! January 24, 2020 Could not be happier with this purchase and upgrade from 4GB to 16GB RAM on my older Mid-2010 macbook pro. The site made it easy to identify exactly which product I needed (8GB ram x2), arrived in my mailbox 3 days later (earlier than expected), and the instructional video helped me complete the install in no time (like, 5 minutes max). My machine immediately recognized the upgrade on reboot.

My machine was basically a brick and after a fresh OS install and upgrading the RAM, it's running like new. I'm now using it to run high-CPU usage applications like MainStage and Logic without any issues. Best $75 I've spent in a long time!!!

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) PC3-8500 DDR3 kit for 27" iMac 2009, Mac mini 2010, MacBook 2010, & MacBook Pro 13" 2010. Customer Videos:

Verified Buyer

Reviewer: Nairb Location: Finger Lakes, NY Age: 45-54 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Like a new computer November 18, 2019 What a remarkable improvement in speed and performance for a 9 year old MacBook Pro running CAD, it is like a new computer. Great bang for the buck, 10 minute install, worked perfect first time.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

Verified Buyer

Reviewer: Olddude60 Location: Ontario Canada Age: Over 65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 The shipping and product better than expected. October 22, 2019 I was looking for memory for our iMac. Found what was needed quickly. Check was simple. Really impressed how fast it came to me in Ontario Canada. The other thing that I was impressed with is how well it was packaged to product the memory. Great job overall.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC-8500 DDR3 kit for iMac '09; MacBook/Pro Unibody '08-10. Customer Videos:

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OWC Memory 8.0GB 8.0GB PC8500 DDR3 Mfr P/N: 8566DDR3S8GB OWC SKU: OWC8566DDR3S8GB OWC Memory Upgrade Module Lifetime OWC Limited Warranty Ships: Same Day

Reviews (749)

only $42.99

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Additional Capacities & Kits:

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