16GB OWC Memory Upgrade Kit
only $103.96 $82.99 Limited supply! Only 9 available.

16GB OWC Memory Upgrade Kit

4 x 4GB PC8500 DDR3 ECC-R 1066MHz DIMMs for Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' systems and Early 2009 Xserve


Mfr P/N: 85MP3S4M16GK OWC SKU: OWC85MP3S4M16GK

$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 Mac People (and PC too), for Over 30 Years

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 »

availabilityIn Stock: Ships Same Day!
$103.96
$82.99
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Limited supply! Only 9 available.
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4GB Modules

12GB
arrow up 3 x 4GB $77.97$62.99 in stockIn Stock: Ships Same Day!
16GB
arrow up 4 x 4GB $103.96$82.99 in stockIn Stock: Ships Same Day!
24GB
arrow up 6 x 4GB $155.94$122.99 in stockIn Stock: Ships Same Day!
32GB
arrow up 8 x 4GB $162.99 in stockSold Out
48GB
arrow up 12 x 4GB $130.56$119.99 in stockIn Stock: Ships Same Day!

8GB Modules

16GB
arrow up 2 x 8GB $31.98$24.99 in stockIn Stock: Ships Same Day!
24GB
arrow up 3 x 8GB $47.97$34.99 in stockIn Stock: Ships Same Day!
32GB
arrow up 4 x 8GB $63.96$44.99 in stockIn Stock: Ships Same Day!
48GB
arrow up 6 x 8GB $95.94$59.99 in stockIn Stock: Ships Same Day!
64GB
arrow up 8 x 8GB $127.92$69.99 in stockIn Stock: Ships Same Day!
96GB
arrow up 12 x 8GB $191.88$99.79 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.

    Data Rate

    • 1066MT/s

    I/O Clock Speed

    • 533MHz

    Registration

    • Registered

    Error Correction

    • ECC

    Cycle Time

    • 1.875 ns

    Form Factor

    • DIMM

    Type of Memory

    • DDR3

    PC Speed

    • 8500

    Timing

    • CAS = 7.0
    • Full Parameters: 7-7-7-20

    Bandwidth

    • 8.5GB/s

    Total Capacity

    • 16GB

    Voltage

    • 1.5 Volts

    Pin Count

    • 240-pin

    Chip Architecture

    • 512M 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)
    1. OWC p/n OWC8566D3MPE4GB (4GB modules), OWC8566D3MPE8GB (8GB modules) and OWC8566D3MPE16G (16GB modules) require that all installed modules be of the same p/n OWC4GB, 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.

    Compatibility & Installation VideosCompatibility & Installation Videos

    Back to top
    Mac Pro (Mid 2012)
    Mac Pro (Mid 2012)
    Mid 2012
    Model ID: MacPro5,1
    3.2GHz 4-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2010)
    Mac Pro (Mid 2010)
    Mid 2010
    Model ID: MacPro5,1
    2.8GHz & 3.2GHz 4-Core Xeon & 2.4GHz 8-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Early 2009)
    Mac Pro (Early 2009)
    Early 2009
    Model ID: MacPro4,1
    2.66GHz & 2.93GHz & 3.33GHz 4-Core Xeon & 2.26GHz & 2.66GHz & 2.93GHz 8-Core Xeon
    Install Videos
    Xserve Xeon (Early 2009)
    Xserve Xeon (Early 2009)
    Early 2009
    Model ID: Xserve3,1
    2.26GHz Xeon E5520 & 2.66GHz Xeon X5550 & 2.93GHz Xeon X5570
    Detailed Specs

    PC Compatible

    PC Compatible
    PC Compatible
    5 out of 5

    9 out of 9 (100%) reviewers would recommend this product

    Write a Review
    4 star
    3 star
    2 star
    1 star
    100%
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    16.0GB Mac Pro Memory arrived fast

    Great service. The package arrived fast and in perfect condition .

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    AverageToad-16978, 
    • Reviewer:AverageToad-16978

    Up and running in 5.4.3.2.1.

    Works flawlessly. Upgraded early 2009 to 16gb ram.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    ProfJG, 
    • Reviewer:ProfJG
    • From:DC Area
    • Age:55-65
    • Experience:Home User
    • Owned Product:1-3 months

    Truly plug and play...

    This memory is such a work horse that when I needed to add more... well here I am again getting this same memory kit to double the memory of my machine.

    I would recommend this product to a friend!

    bellard, 
    Mar, 9 2018 
    • Reviewer:bellard
    • From:Berkeley, California
    • Age:55-65
    • Experience:Power User
    • Owned Product:over 6 months

    View More Reviews