24GB OWC Memory Upgrade Kit
3 x 8GB PC14900 DDR3 ECC 1866MHz DIMMs for Mac Pro Late 2013 models
Mfr P/N: 1866D3E8M24 OWC SKU: OWC1866D3E8M24
$90.99 off - *NOW* Get Parallels Desktop Pro Edition - Windows/Multi OS Compatibility software for Mac - Only $29.00 with select OWC SSDs, HDDs, Memory, External Storage, and Optical Drives! (Limit 3 rebates, 1 rebate per qualifying item)
Must purchase with: Parallels Desktop Pro Edition for Mac - 1 Year License. SPECIAL PURCHASE
Memory Built by Mac People, for Over 30 Years
- Memory is the most cost-effective DIY upgrade you can make to your Mac.
- Unleash the true speed and performance of your system and applications.
- Experience increased efficiency and productivity. Open more apps and files, all at the same time.
- Warranty Safe Upgrade
- Free step-by-step installation videos
- Why do I need more Memory?
- 30 Day Money Back Guarantee
- OWC Memory Lifetime Limited Warranty including Advanced Replacement Program
Trade In Your Original Memory and SAVE!
Within 60 days from the purchase date of qualifying OWC memory, you can choose to trade in your old memory for a cash rebate! Learn More »
Overview
OWC Memory. Built for Macs + PCs.
Experience your computer's true performance potential.
Improve System Speed
OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential, and speed up overall responsiveness.
More Apps. More Files
Become a multi-tasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time.
Save $$ vs Factory
Save BIG vs factory memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.
Lab Tested Compatibility
We test every OWC memory module at our in-house lab so you can upgrade with the confidence that your memory is built-to-last.
Lifetime Warranty
We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service.
Step-by-Step Videos
Our detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy.
Experience the OWC Difference
Rely on the trusted name for memory upgrades, drives and accessories for over 30 years. Your OWC Memory upgrade was built by Mac and PC people, for Mac and PC people. Our expert support team is always a call or click away. You can talk to an actual human who will kindly provide advice and guidance for any questions you may have.
Being helpful and treating others the way you would want to be treated is not just a novel idea. It’s how we do business. It's how we’re built. It's what we’ve been doing since 1988.
Includes
- (3) 8GB PC14900 1866MHz DDR3 DIMM memory modules
- OWC Memory Lifetime Limited Warranty including Advanced Replacement Program
Specs
Data Rate
- 1866MT/s
I/O Clock Speed
- 933MHz
Registration
- Non-registered
Error Correction
- ECC
Cycle Time
- 1.072 ns
Form Factor
- DIMM
Type of Memory
- DDR3
PC Speed
- 14900
Timing
- CAS = 13.0
- Full Parameters: 13-13-13-14
Bandwidth
- 14.9GB/s
JEDEC
- Fully compliant with JEDEC specifications
Total Capacity
- 24GB
Voltage
- 1.5 Volts
Pin Count
- 240-pin
Chip Architecture
- 1024M x 72
Printed Circuit Board Type
- Low noise 8-layer PCB
RoHS Compliant
- Yes
Ambient Temperature
- Operating: 32°F to 185°F (0°C to 85°C)
Compatibility & Installation Videos
Mac Pro

Videos
Customer Reviews
Ordered memory for older Mac.
I would recommend this product to a friend!
- Reviewer:Reviewer690678306
Thank you so much for the amazing 5-star review! We're thrilled to hear that your experience with us was simple and easy. It's great to know that we were able to provide you with the perfect memory for your older Mac. We appreciate your support and look forward to serving you again in the future.
Perfect match, no problem at all.
I would recommend this product to a friend!
- Reviewer:LuckyHorse-29057
Glad to hear the memory had been the perfect fit for your MacPro, we carry many upgrades for most Macs, if you ever have a question about what's available feel free to give us a call at 1-800-275-4576!
Very happy with RAM card. Also additional information/ links provided on site regarding install and static precautions very helpful
I would recommend this product to a friend!
- Reviewer:JRRVCR
Thank you so much ComfortableWolverine-88483 for taking the time to leave your awesome review. We love to hear that the RAM upgrade to your mac was exactly what you needed. Please feel free to contact us if you have any further questions, comments, or concerns. Phone 1-800-275-4576 or +1-815-338-8685 Customer Service/Sales & Technical Support - Monday-Friday (8am-8pm CT) - Saturday & Sunday (Closed) Live Chat Technical Support - Monday-Friday (8am-8pm CT) - Saturday (9am-5pm CT) - Sunday (Closed) Live Chat Customer Service/Sales - Monday-Friday (7am-10pm CT) - Saturday & Sunday (9am-5pm CT). Thanks for choosing OWC, and have a great Day!