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64.0GB OWC Memory Upgrade Kit

Matched pair, perfect for the Mac Pro 8-core / Quad-core Xeon systems!
Memory Image
Product Specs:
OWC Memory for Mac Pro Quad Xeon fully meets Apple's specifications with special attention to proper thermal specifications.
OWC p/n OWC1333D3MPE8GB (8GB modules) and OWC1333D3MPE16G (16GB modules) require that all installed modules be of the same p/n OWC 8GB and/or 16GB modules. Other existing Apple or 3rd party 1GB, 2GB and 4GB modules are not supported for use with these kits and need to be removed when these modules are added.

To utilize over 32GB of memory in your Mac Pro using 10.6.x or greater, you must boot into 64 bit mode. In 32 bit mode, all installed memory will show in system profiler but only up to 32GB will be actively used by the computer.

This kit is compatible with dual processor (8-core & 12-core) Mac Pro models ONLY. While single processor (Quad and 6-core) Mac Pro models do have 4 memory slots available, This kit is not compatible due to an OS system limitation.
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 - all OWC DDR3 ECC Modules for the Apple Mac Pro 'Nehalem' process 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 12-Core
(Mid 2010-2012)
(July, 2010 / June 2012)
Model ID: MacPro5,1
2.40GHz, 2.66GHz, 2.93GHz, 3.06GHz
Mac Pro
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
Mac Pro
Mac Pro (Early 2009 8-Core)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
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 3 out of 3 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: Anonymous Age: 45-54 Experience Level: Hobbiest Owned Product: 1-3 months
Rating: 5/5 Excellent Upgrade...will be Getting Another 64G January 1, 2016 Fast shipping and no issues with the item. Very Satisfied!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: London, England Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Take your Nehalem Mac Pro to the max June 29, 2015 Added this to an earlier OWC 64GB memory kit for my 2010 Mac Pro. Different part numbers but fully compatible. Perfect for a 12-core VM farm

I would recommend this item to a friend!

Verified Buyer
Reviewer: DatacomTSS Location: Australia Owned Product: 1-3 months
Rating: 5/5 2 x 64GB in a MacPro Server with ESXi September 20, 2012 We placed two of these kits in our 2012 (mid-year update) MacPro Server 12 core machine and it runs flawlessly with ESXi 5.1 accessing all 128GB of RAM.

Great aftermarket upgrade in terms of value for money and fast shipping to Australia.

I would recommend this item to a friend!

OWC Memory 64.0GB 4 x 16.0GB PC10600 DDR3 Module Mfr P/N: 1333D3X9M064 MacSales.com SKU: OWC1333D3X9M064 OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $379.96Matched Kit for $369.99
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