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16.0GB OWC Memory Upgrade Kit

Memory Image
Product Specs:
OWC Memory for Mac Pro Quad Xeon 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.
*About the Apple Specified Thermal Sensor:
Ensuring maximum performance, reliability, and operational feedback -this DDR3 ECC Modules for the Apple Mac Pro 'Nehalem' 4 Core/8-Core and 'Westmere' 6-Core/8-Core processor models feature utilization of Apple qualified components including the inclusion of the Apple qualified Thermal Sensor EEPROM.
Please Note:
Memory modules may differ in appearance from those pictured.
This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
Mac Pro
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.4GHz
Mac Pro
Mac Pro (Mid 2010 Quad-Core)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz, 3.33GHz
Mac Pro
Mac Pro (Early 2009 8-Core)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
Mac Pro
Mac Pro (Early 2009 Quad-Core)
(March, 2009)
Model ID: MacPro4,1
2.66GHz, 2.93GHz, 3.33GHz
Xserve Intel
Xserve 8-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz, 2.66GHz, 2.93GHz
Xserve Intel
Xserve Quad-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz
PC Desktop
PC Desktops
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 5 / 5 13 out of 13 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: Anonymous Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Works great January 15, 2016 These work great, just like everything else I've gotten from OWC.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Kier Location: Puyallup, WA Age: 45-54 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Ah... they work as advertised. December 17, 2015 I just installed these in my 2009 Mac Pro a few months ago and they're working just like they should. I'm often working with multiple photo editing programs open at the same time with large RAW files and my performance was getting pretty sluggish with just 8gb of RAM. Threw these guys in and no problems since.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Texas Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Ram, everyone's friend. October 7, 2015 High quality memory, well-packaged. Worked 100% as reasonably expected, so I'm entirely pleased.

I would recommend this item to a friend!

Verified Buyer Top 100 Contributor
Reviewer: Anonymous Location: Plainsboro, NJ Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 16.0GB OWC Matched Set (2x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules August 14, 2015 OWC offers the right solutions and value.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: knoxville, tn Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 long time customer of OWC March 11, 2015 have 2x 1 gig and 2x 4 gig of OWC ram, running for over 5 years, no problems no issues, none ram related anyway.

I expect the same long term dependability from these 2x 8 gig s.

SPECIAL NOTE: IN THE MAC PRO 2010 5,1 2X QUAD -- THESE MUST BE IN FIRST SLOT ON EACH SIDE = 1 & 5 -- ANY OTHER CONFIGURATION WILL NOT RECOGNIZE RAM.

so if you install ram and it doesnt show up, make a note of locations and try a different order.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Minneapolis, MN Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Easy installation. Works perfectly. February 12, 2015 My Early 2009 Mac Pro was consistently using up my 10GB of RAM. I installed the 16GB memory, bringing the total to 24GB, and my computer has speeded up signficantly. Easy installation. Works perfectly. Thanks OWC!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Sunnyvale, Ca Age: 35-44 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Good Fast Memory January 18, 2015 This Memory is great. My system is running flawlessly. OWC Tech Support worked with me on the recommendation. Make sure this speed of RAM is the only RAM in your system. If you have doubts... talk to tech support. Seriously they know their job well.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Uppsala. Sweden Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Simply perfect December 11, 2014 Not much to write – memory modules, they work as they should, nothing else was expected. They arrived to Sweden quite fast and I'm happy with both the product and OWC!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Copenhagen Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Just the right Ram for my MacPro 2010 October 29, 2014 I purchased16.0GB Mac Pro / Xserve 2009 Memory Matched Set (8GB x 2) PC-8500 1066MHz DDR3 ECC SDRAM Modules for my 2010 MacPro and they just work flawlessly. It's a very good product to an affordable price.

Can only recommend this company and their products.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Boulder Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 works great October 21, 2014 right memory for my computer for the right price - speedy delivery

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: iceland Age: 35-44 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 100% Perfect October 4, 2014 Great service, fast overseas delivery. I will buy more from OWC :)

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

Verified Buyer
Reviewer: Anonymous Location: San Diego, CA Age: 55-65 Experience Level: Home User
Rating: 5/5 No issues May 19, 2014 It just works, No problem at all.

I would recommend this item to a friend!

OWC Memory 16.0GB 2 x 8.0GB PC8500 DDR3 Kit Mfr P/N: 85MP3W8M16K OWC SKU: OWC85MP3W8M16K OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $95.98Matched Kit for $91.99
Add to CartOther World Computing 85MP3W8M16K In Stock, Click to Buy Now