16.0GB OWC Memory Upgrade Kit
4 x 4.0GB Matched Set PC5300 DDR2 ECC 667MHz 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.
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.
OWC is proud to offer the best possible Mac Pro Memory solutions available.
Premium Quality Modules fully Mac Pro Qualified and backed by OWC Memory Lifetime Limited Warranty including Advanced Replacement Program.
These OWC memory modules fully meet/exceed Apple's Mac Pro Quad & 8-Core Xeon model memory specifications. Utilization of qualified Apple
Mac Pro Heat-Spreaders, Apple Qualified IDT AMBs, and the best major brand memory components ensure maximum performance and trouble-free operation.
Modules are fully tested prior to shipment.
Apple specifically designed the Mac Pro with more space between each slot to accommodate the Apple Proprietary Heat-Spreader for thermal requirements.
Use of Apple's spreader solution and the highest grade, thermally tolerant components ensure that these Mac Pro Quad Xeon Memory Upgrade Kits will
provide a lifetime of reliable and trouble-free operation.
Apple notes that using parts with a non-Apple standard heat-spreader and which only meet JEDEC standard specifications can result in higher fan speeds due to
increased internal temperatures and system controlled reduction of memory performance to prevent thermal overload.
OWC's testing has found
that use of non Apple qualified spec modules leads to ECC errors and ultimate system lock ups as non-spec modules reach significantly higher temperatures.
Two well known memory manufacturers originally listed their own JEDEC standard modules as being Mac Pro compatible. Within days of doing so, each removed
this compatibility support after reports and testing which made clear JEDEC standard modules were not reliable in the Mac Pro. It is very disappointing
that many other memory providers continue to list and misrepresent such JEDEC modules (lacking the proper heat-spreader) as being correct for the Mac Pro.
The Apple Mac Pro is an amazing machine. Memory from OWC only makes it better!
Mac Pro 8-core (Early 2007)
(April, 2007)
Model ID: MacPro2,1
3.0GHz
Mac Pro 4-core (Mid 2006)
(August, 2006)
Model ID: MacPro1,1
2.0GHz, 2.66GHz, 3.0GHz
Customer Ratings
Write a Review
5 / 5
10 out of 11 (91%) reviewers would recommend this product
Verified Buyer
Reviewer: RaptorKat
Location: Atlanta, GA
Age: 45-54
Experience Level: IT Professional
Owned Product: less than a month
Rating: 5/5
Fixed System Crashes
July 23, 2018
Mac Pro 2,1 (2007) was crashing and fan came on full speed. Apparently RAM had gone bad. Replaced RAM with this, fixed all problems. I would recommend this item to a friend!
Verified Buyer
Reviewer: MacDrew
Age: 45-54
Experience Level: IT Professional
Owned Product: 1-3 months
Rating: 5/5
Brings new life to my Mac Pro!
November 7, 2017
I would recommend this item to a friend!
Verified Buyer
Reviewer: MacUser4Art
Location: Dallas TX
Age: 45-54
Experience Level: Power User
Owned Product: 3-4 months
Rating: 5/5
16.0GB Mac Pro Memory
October 8, 2016
Thanks to MacSales! this Memory work perfect in my Mac Pro! running faster! I recommend to all customer! you can buy it this memory and have peace! is one of the best set ever! I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Toronto, Ontario
Age: 55-65
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Very satisfied
February 4, 2016
I am pleased with the product. High quality. The price was great too. Especially impressive was the speed of shipping to Toronto Canada. I've ordered at least twice since then and the results were the same. I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Chicago suburbs
Age: 55-65
Experience Level: Home User
Owned Product: 1-3 months
Rating: 5/5
Carefully packaged, easy to install
February 1, 2016
Very happy with the quality of the memory for my upgrade. It arrived promplty, packaged well, and was easy to install with the directions given on the website. I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Rating: 5/5
Popped right in and worked perfectly
September 7, 2015
Would recommend these sticks to fellow owners of 2006 1st Gen Mac Pro's.
Now I'm running happy with 20GB. Youtube HD videos no longer stutter, and Netflix plays smoothly!
I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Chicago
Age: 45-54
Experience Level: Power User
Owned Product: 5-6 months
Rating: 5/5
Excellent memory
July 1, 2015
I've had these sticks for awhile and they are awesome! Price was great too. I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Rating: 5/5
Excellent as usual from OWC
November 11, 2014
Product arrived as expected,install was simple and easy and everything works perfect thanks owc. I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Dubai
Age: 25-34
Experience Level: IT Professional
Owned Product: 1-3 months
Rating: 5/5
Amazing Product
October 24, 2014
Grade "A" quality product, value for money and shipping was blazing fast. I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous
Location: Hong Kong
Age: Over 65
Experience Level: Hobbiest
Owned Product: over 6 months
Rating: 5/5
This product has great features
February 26, 2014
One can find faster memory for old computers: unfortunately too expensive. I would recommend this item to a friend!
Verified Buyer Top 250 Contributor
Reviewer: Anonymous
Location: Atlanta
Age: 45-54
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
worked perfectly.
March 20, 2013
easy install and great speed boost