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OWC Memory Upgrades For Mac Pro (2009)

Up to 128GB memory

Works with the following Model IDs

  • MacPro4,1
  • View our memory performance tests
  • Easy DIY install videos
  • OWC MaxRAM Certification
  • Lifetime Warranty on all OWC Memory

OWC Memory

Available for Quad-Core and 8-Core machines

  • This Mac has four or eight available memory slots.
  • Install in pairs for best performance.
  • High performance multi-channel memory.
  • Backed by an OWC Limited Lifetime Warranty.
16GB Module - Buying options 1066MHz DDR3 PC3-8500 ECC Registered
16GB (16GB x 1) $69.99 Buy Now
32GB (16GB x 2) $129.99 Buy Now
48GB (16GB x 3) $189.99 Buy Now
64GB (16GB x 4) $249.99 Buy Now
96GB (16GB x 6)
8-Core Only
$349.99 Buy Now
128GB (16GB x 8)
8-Core Only
$429.99 Buy Now
16GB Module Sets require that all installed modules be of the same p/n OWC 16GB modules. 16GB modules do not mix with other density (2GB, 4GB, or 8GB) module types.

Apple Mac Pro "Nehalem" & "Westmere" models utilize high-performance multi-channel memory addressing that benefits from the installation of matched memory sets

Install Videos

Our step-by-step installation videos guide you through upgrading your Mac, iPhone, iPad or iPod.

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Solid State Drives

Shop SSD specifically for your Mac Pro Experience the true speed of your mac with an OWC SSD flash storage upgrade. Select your Model ID below.


OWC Upgrade Service

Upgrade your Mac with certified professional installationNot comfortable working on your own machine? Let our expert technicians upgrade it for you. Quick, easy, and backed by OWC.

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OWC Upgrade Service