Home » Memory

4.0GB OWC Memory Module

Memory Image
Product Specs:
OWC Memory for Mac Pro 2013 fully meets Apple's specifications with special attention to proper thermal specifications.
Easy to install!
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.
This OWC Memory is compatible with... Learn how to find your Mac's model ID
Mac Pro
Mac Pro
(December, 2013)
Model ID: MacPro6,1
2.7GHz 3.0GHz, 3.5GHz, 3.7GHz

Customer Ratings

Write a Review 4.9 / 5 65 out of 66 (98%) reviewers would recommend this product
Verified Buyer
Reviewer: stemarie
Rating: 5/5 MacSales is the Best! May 28, 2021 Great service and quick processing and delivery.

I would recommend this item to a friend!

Verified Buyer
Reviewer: LMPrintshop Location: Ca Age: 25-34 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Works as expected December 17, 2017 Purchased 32g of memory replacing the stock 12gb on a late 2013 Mac Pro night and day difference, we are able to run multiple graphics programs at once without the color wheel of death showing. Super easy to install and fast shipping. Worth the investment.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer
Reviewer: Foxy Location: Springfield, MO Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Another dimm and a faster computer July 23, 2016 I expect the memory to last for as long as the computer does.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Arizona Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Everything as expected April 21, 2016 The memory upgrade arrived on time and it was easy to install. I returned the old memory for a refund, which arrived promptly as well. I would do it again anytime.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 highly recommend February 4, 2016 I would recommend this item to a friend! This review is from 8.0GB OWC PC14900 DDR3 1866MHz ECC Memory Module.
Verified Buyer
Reviewer: Anonymous Location: Kent, Ohio Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Memory works fine January 22, 2016 I upgraded a 16 GB Mac Pro with this set. Took about 5 minutes to swap out the boards, and reboot. System is working fine, and I was also able to sell the original 16 Gb back to OWC, instead of pitching in the trash.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer
Reviewer: Anonymous Location: San Diego, CA Age: 25-34 Experience Level: Power User Owned Product: over 6 months
Rating: 4/5 For months my Mac Pro crashed, RAM scans didn't show any issues January 17, 2016 A couple months after I bought this RAM my Mac Pro crashed, crashed and crashed constantly for months. I took it in to Apple thinking it was something else, they checked it in, tested it, everything pass with flying colors, even the RAM. It was excruciating working on my Mac with so many constant crashes. Then one day I decided to call OWC to ask to replace the RAM, they did, and my Mac Pro stopped crashing. I was torn to give it 3 or 4 stars, because I like OWC, but never had something given me so many crashes like this on any of my Macs for over 10 years, and I couldn't believe that it would even pass RAM tests, until I decided to get it replaced. I guess this was a quality issue at the end, but it caused me a lot of headaches and wasted time thinking it was my Mac Pro with the issues.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer
Reviewer: Anonymous Location: California Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Mac Pro Memory August 16, 2015 I have a 2013 Mac Pro that only had 12 GB of ram. I ordered 32 GB and I am very happy that I did. The memory is fast just as the delivery was. I will be ordering many more stuff from OWC. Thank you for the great service.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer Top 50 Contributor
Reviewer: Anonymous Location: Bella Vista,ar Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Mac Pro Memory June 1, 2015 OWC is the one place in my opinion,that you can buy from with complete confidence! Great products coupled with outstanding support!!

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

Verified Buyer
Reviewer: Anonymous Age: 35-44 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 32 GB RAM for Mac Pro 2013 December 8, 2014 Received the memory today. Install was a breeze with the video from OWC as help. Everything worked like a charm.

I would recommend this item to a friend! This review is from 32.0GB (4 x 8GB) OWC PC14900 DDR3 1866MHz ECC Memory Module.

OWC Memory 4.0GB 1 x 4.0GB PC3-14900 DDR3 Module Mfr P/N: 1866D3ECC04G OWC SKU: OWC1866D3ECC04G OWC Memory Module Lifetime OWC Limited Warranty Ships: Pending Only $49.95OWC Price $29.99
Add to CartOther World Computing 1866D3ECC04G, Click to Buy Now
Additional Capacities & Kits: