48GB OWC Memory Upgrade Kit
only $74.97 $48.99 You Save $25.98

48GB OWC Memory Upgrade Kit

3 x 16GB PC14900 DDR3 ECC-R 1866MHz DIMMs for Mac Pro Late 2013 models


Mfr P/N: 1866D3R9M48 OWC SKU: OWC1866D3R9M48

$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

  • IMPORTANT: Mac Pro (Late 2013) models utilize thermal enabled ECC Registered and ECC non-Registered memory, however ECC Registered and ECC non-Registered memory cannot be combined. If you are adding ECC Registered memory in a system with ECC non-Registered memory, you will need to remove the original ECC non-Registered memory prior to installing the ECC Registered memory.
OWC Memory Trade-in Rebate

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 »

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8GB Modules

8GB
arrow up 1 x 8GB $19.99 in stockIn Stock: Ships Same Day!
16GB
arrow up 2 x 8GB $39.98$34.99 in stockIn Stock: Ships Same Day!
24GB
arrow up 3 x 8GB $59.97$49.99 in stockIn Stock: Ships Same Day!
32GB
arrow up 4 x 8GB $79.96$59.99 in stockIn Stock: Ships Same Day!

16GB Modules

16GB
arrow up 1 x 16GB $24.99$17.99 in stockIn Stock: Ships Same Day!
32GB
arrow up 2 x 16GB $49.98$34.99 in stockIn Stock: Ships Same Day!
48GB
arrow up 3 x 16GB $74.97$48.99 in stockIn Stock: Ships Same Day!
64GB
arrow up 4 x 16GB $99.96$59.99 in stockIn Stock: Ships Same Day!

Overview

OWC Memory for Mac & PC

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.

OWC Logo

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.

IncludesIncludes

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    Data Rate

    • 1866MT/s

    I/O Clock Speed

    • 933MHz

    Registration

    • 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

    Capacity

    • 48GB

    Voltage

    • 1.5 Volts

    Pin Count

    • 240-pin

    Chip Architecture

    • 2048M x 72

    Printed Circuit Board Type

    • Low noise 8-layer PCB

    RoHS Compliant

    • Yes

    • Operating: 32°F to 185°F (0°C to 85°C)

    Compatibility & Installation VideosCompatibility & Installation Videos

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    Mac Pro (Late 2013)
    Mac Pro (Late 2013)
    Late 2013
    Model ID: MacPro6,1
    3.7GHz 4-Core Xeon & 3.5GHz 6-Core Xeon & 3.0GHz 8-Core Xeon & 2.7GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    4.93 out of 5

    83 out of 84 (98%) reviewers would recommend this product

    Write a Review
    2 star
    1 star
    94%
    5%
    1%
    0%
    0%

    Memory

    The delivery and quality of the parts was right on.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer792093420, 
    • Reviewer:Reviewer792093420
    Response from OWC, Support

    Wow, thank you so much for your fantastic review! We're thrilled to hear that you were satisfied with both the delivery and quality of our parts. Your support means the world to us, and we’re excited to keep providing you with top-notch products. Enjoy your upgraded memory! Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    Done right, first time!

    Small order to replace bad memory. Came on time, works, job done.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer518911257, 
    • Reviewer:Reviewer518911257
    Response from OWC, Support

    Thank you so much for your fantastic review! We're thrilled to hear that your memory replacement went smoothly and that everything arrived on time. It's always our goal to get it right the first time for our customers. If you have any more tech needs in the future, we’re here and ready to assist! Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    Only 48GB Out of 64GB RAM Purchased registered on MAC Pro

    At first only 32 GB registered then I took them out and reinserted them and 48 GB registered. I will give it another try and see what happens. MAC Sales Rocks and their products are superior so I am sure it may be something at my end.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    brainlife, 
    • Reviewer:brainlife
    Response from OWC, Support

    Thank you for the feedback on our RAM. We recommend cleaning off all of the RAM sticks with a pencil eraser and gently removing the residue. Try inserting them again and see if that helps get all of them working properly. If you are still having issues double-check that the product you received is compatible with your device. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/


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