48.0GB OWC Memory Upgrade Kit
3 x 16.0GB PC10600 DDR3 ECC-R 1333MHz 240 Pin
Matched pair, perfect for the Mac Pro 8-core / Quad-core Xeon systems!
Product Specs:
OWC Memory for Mac Pro Quad Xeon fully meets Apple's specifications with special attention to proper thermal specifications.
IMPORTANT OWC NOTE:
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.
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.
Mac Pro 12-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
2.4GHz, 2.66GHz, 3.06GHz
Mac Pro 6-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
3.33GHz
Mac Pro 4-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
3.2GHz
Mac Pro 12-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.66GHz, 2.93GHz
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.4GHz
Mac Pro 6-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
3.33GHz
Mac Pro 4-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz
Mac Pro 8-Core (Early 2009)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
Mac Pro 4-Core (Early 2009)
(March, 2009)
Model ID: MacPro4,1
2.66GHz, 2.93GHz, 3.33GHz
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
6 out of 7 (86%) reviewers would recommend this product
Verified Buyer
Reviewer: MACsRULE
Location: Pennsylvania
Age: 55-65
Experience Level: Home User
Rating: 5/5
My Computer ZOOMS!
February 18, 2020
Thank You OWC for letting us know that these 16 GB RAM chips will work in my Mid-2010 quad core (intel) Mac Pro! i now have these 3 modules installed and it's like having a new computer! i am VERY VERY happy! I would recommend this item to a friend!
Customer Videos:
Verified Buyer
Reviewer: RAREMuZIK
Location: Nashville, TN
Age: 55-65
Experience Level: Power User
Owned Product: over 6 months
Rating: 5/5
I am a Mac newbie... appreciate your service
December 27, 2019
Great quality product... awesome shipping!! I have more several more Macs that are in need of upgrading. I've placed another order today and it's shipped already. Incredible... Thanks I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM ECC-Registered for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: bitnaut
Location: Vancouver, Canada
Age: 45-54
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Works great!
October 22, 2018
Works great in my Mac Pro 5,1...no errors like I was getting with the last memory sticks I bought from a competitor.
Thanks OWC!
I would recommend this item to a friend!
Customer Videos:
Verified Buyer
Reviewer: DroiddProductions
Location: Toronto, Canada
Age: 35-44
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Mac Pro 5.1 Phoenix!
September 11, 2018
This ram kit took my mid 2010 Mac Pro from being an obsolete paper wieght into 2018. I need to mention that I also upgraded my dual processors to Xeon x5690’s at 3.46ghz and threw in a 500gb ssd for the boot volume. These inexpensive upgrades saved me thousands of dollars. My machine is insanely fast now. Thank you OWC for providing quality products at great prices. You are my go to site for Mac hardware. I would recommend this item to a friend! This review is from 128.0GB (8x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: Carls708
Location: Louisiana
Age: Over 65
Experience Level: Home User
Owned Product: less than a month
Rating: 5/5
Worked perfectly!
March 25, 2018
The Mac Pro was sluggish working with large image files, and the increased memory solved the problem. We went from 12 to 96 gigabytes, and the performance increase was dramatic. The memory upgrade actually arrive a day early, which we appreciated. I would recommend this item to a friend! This review is from 96.0GB (6x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: Unixjedi
Location: Trophy Club,TX
Age: 45-54
Experience Level: IT Professional
Owned Product: over 6 months
Rating: 5/5
no issues, it memory
December 4, 2017
Not real hip on doing reviews on mundane items. OWC memory has always been good and good value. Never had a fault. Apple will always give the "need to be Apple Memory" line but OWC is fine and is same or better. I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: Saeedphoto
Location: Dubai
Age: 35-44
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Big deal
June 27, 2017
128 GB is a big deal, I used to have 64 GB memory from Samsung which was great but after installing 128GB my computer runs photoshop and lightroom much faster and almost everything is noticeably faster. I would recommend this item to a friend! This review is from 128.0GB (8x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: JFNJ123
Location: Montclair, NJ
Age: 45-54
Experience Level: IT Professional
Owned Product: less than a month
Rating: 5/5
works perfectly! Great for running multiple VMs
June 12, 2017
I am a software engineer running primarily windows (!!) on my 2010 5,1 Mac Pro. I do all of my development in windows under VMware Fusion, running multiple VMs hosting custom application software along with Oracle server. I prefer to host the virtual machines under Mac OS, as the "housekeeping" is so much easier - backups, email, encryption, and so on. I recently bought a 12-core processor tray for my Mac Pro just so that I could have a higher memory maximum - my old Mac Pro had 6 cores and maxed out at 48Gb. I bought the 128Gb memory upgrade and it's quite a luxury to have so much memory available to run multiple virtual machines. The 8 memory boards arrived, and I installed them onto the processor tray. No issues - they just worked. I would recommend this item to a friend! This review is from 128.0GB (8x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: DaveJ
Location: Houston
Age: Over 65
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Make a monster out of your older Mac Pro
March 31, 2017
Upgraded 2012 Mac Pro 12 Core to 128gb core memory for heavy editing with Final Cut Pro. What an improvement in performance. This 5 year old machine still outperforms most new computers on the market today. This upgrade along with a Nvidia Titan X with 12 gb ram video card cuts movie processing time down significantly. I would recommend this item to a friend! This review is from 128.0GB (8x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: prandall
Location: South Weymouth, MA
Age: 55-65
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Super Quality and Easy Installation
February 16, 2017
These were of exceptional quality both in looks and function. I put them in, booted and my running out of memory ended in macOS Sierra. I've used the new memory for some time, now, without a hitch. I'll definitely be back for more upgrades. I would recommend this item to a friend! This review is from 128.0GB (8x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
Customer Videos:
Verified Buyer
Reviewer: DBailey
Location: Perth, Western Australia
Age: 55-65
Experience Level: Home User
Owned Product: less than a month
Rating: 5/5
Easy upgrade
January 18, 2017
Very easy to install and an instant and noticeable speed increase on my MAC. I would recommend this item to a friend!
Customer Videos:
Verified Buyer
Reviewer: Fishman
Location: Florida
Age: 55-65
Experience Level: Power User
Owned Product: over 6 months
Rating: 5/5
OWC Mac Memory - outstanding!
December 20, 2016
I purchased a new dual 6-core Mac Pro computer in mid-2012. from Apple ...the last of its kind. I immediately upgraded the memory to 48 GB. Recently, I upgraded again with OWC and purchased 5 more of these 16-GB memory modules to max-out my Mac Pro to 128 GB of RAM. Wow! It flies through processor/memory-intensive programs like nothing I have ever seen. OWC stands behind their products and I trust them implicitly. This memory is designed and manufactured to the strict Apple/Mac standards and works perfectly. I would recommend this item to a friend!
Customer Videos:
Verified Buyer
Reviewer: Anonymous
Location: Switzerland
Age: 35-44
Experience Level: Home User
Owned Product: 5-6 months
Rating: 5/5
Happy and great help videos
July 18, 2016
Easy buy, fast delivery and easy installation. Even if you are dumb as me, and don't realize that there are 2 CPUs, thus RAM-slots hidden behind it. The great OWC help video showed that clearly... :D
Since then the RAM works, and works, and works... no issues since about half a year. Highly recommended!
I would recommend this item to a friend! This review is from 16.0GB (4x 4GB) OWC Brand PC10600 DDR3 ECC-Registered 1333 MHz 240 pin DIMM Memory upgrade kit.
Verified Buyer
Reviewer: guywithzeisslens
Location: Singapore
Age: 18-24
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Reliable
June 11, 2016
I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Paris, France
Age: 45-54
Experience Level: Home User
Owned Product: 1-3 months
Rating: 5/5
Extremely competent customer service and superb product
March 29, 2016
Prior to purchasing, I had a live chat with a very competent service person who guided me through the intricacies of RAM selection for my MacPro 2010.
I wanted to max out the RAM and the advice I received helped me a lot to secure the correct memory reference for purchase.
Shipping to Europe was a mere matter of days and the RAM worked out of the box providing the announced performance.
I'm very satisfied with both the product and overall purchasing experience.
Definitely recommended to european customer who want competent input prior to issuing an order.
I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Palo Alto
Age: 45-54
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Updated a Mac Pro 5.1 mid 2010
June 4, 2015
The Ram was well packed, easy to install and worked perfectly since the first day I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Freestone, CA
Age: Over 65
Experience Level: Power User
Owned Product: 3-4 months
Rating: 5/5
Out with the old, in with the new.
March 1, 2015
I'm a long term OWC customer. My 2010 6-core's 3x 8GB OWC chips needed a memory refresh for Yosemite and the Adobe CC suite. With the purchase of 3 x 16GB chips I received a 3 x $40 credit for my old chips. The great thing about purchasing memory from OWC is support. If there is a problem they will take care of it. No worries. 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! This review is from 64.0GB (4x 16GB) PC10600 DDR3 ECC-Registered 1333MHz SDRAM for Mac Pro 'Nehalem' & 'Westmere' Models.
