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OWC

OWC 8GB DDR3 1066MHz 8GB DDR3 1066MHz ECC Memory Module - Memory Module (DDR3, PC/Server, 240-pin DIMM, RoHS)

  • Based on 104 reviews
Condition: New
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Availability: 17 left in stock
Fulfilled by Amazon

Arrives Wednesday, May 22
Order within 1 hour and 53 minutes
Available payment plans shown during checkout

Size: 8GB


Style: 1 x 8GB


Features

  • OWC 8GB PC8500 DDR3 ECC 1066MHz DIMM Memory
  • Compatible With Mac Pro 8-Core (Early 2009 - 2010) Model ID: MacPro4,1 MacPro5,1 : 2.9GHz Xeon X5570, 2.7GHz Xeon X5550, 2.3GHz Xeon E5520 / 2.4GHz Xeon E5620
  • Compatible With Mac Pro 4-Core (2009 - 2012) Model ID: MacPro4,1 MacPro5,1 : 3.3GHz Xeon W3580, 2.9GHz Xeon W3540, 2.7GHz Xeon W3520 / 2.9GHz Xeon X5570, 2.7GHz Xeon X5550, 2.3GHz Xeon E5520 / 3.2GHz Xeon W3565
  • OWC Memory Lifetime Limited Warranty including Advanced Replacement Program

Description

OWC MEMORY: Memory made for your Mac. At OWC, we want your Mac to perform faster and last longer. That’s why we engineer memory specifically tested and optimized for Mac. There’s OWC memory for nearly every upgradeable Mac, from the PowerMac G4 to the latest 2017 iMacs. Plus we make it easy to upgrade by yourself with step-by-step install videos, and included toolkits. It’s the easiest way to improve your Mac’s performance. OWC memory is specifically engineered for compatibility with your Mac. We start with the highest-quality components, and then create memory to the exacting speed, capacity, and programming specifications of nearly every upgradeable Apple computer. The result is JEDEC-compliant memory that’s a perfect fit for a faster Mac. ​ OWC PC8500 DDR3 ECC 1066 MHz 240 pin DIMM Memory For Mac Pro and Xserve Compatible with: Mac Pro 8-Core (Mid 2010)(July, 2010) Model ID: MacPro5,1 (2.4GHz) Mac Pro (Mid 2010 Quad-Core)(July, 2010) Model ID: MacPro5,1 (2.8GHz, 3.2GHz, 3.33GHz) Mac Pro (Early 2009 8-Core)(March, 2009) Model ID: MacPro4,1 (2.26GHz, 2.66GHz, 2.93GHz) Mac Pro (Early 2009 Quad- Core)(March, 2009) Model ID: MacPro4,1 (2.66GHz, 2.93GHz, 3.33GHz) Xserve 8-Core (Early 2009)(April, 2009) Model ID: Xserve3,1 (2.26GHz, 2.66GHz, 2.93GHz) Xserve Quad-Core (Early 2009)(April, 2009) Model ID: Xserve3,1 (2.26GHz) PC Desktops: Compatible with Intel / AMD Process based PCs capable with the specifications listed above. ​ PC Servers: Compatible with Intel / AMD Process based servers capable with the specifications listed above OWC 8.0GB PC8500 DDR3 ECC 1066 MHz 240 pin DIMM Memory Module Upgrade For Mac Pro and Xserve Size: 8GB (8192MB) 240-pin SDRAM DIMM 1024M x 72, Dual Rank ECC Memory Module Data Rate = 1066MHz Module Bandwidth 8.5GB/s CAS 7-7-7-20 Voltage 1.5V Apple Specified Thermal Sensor OWC Memory for Mac Pro Quad Xeon fully meets Apple's specifications with special attention to proper thermal specifications. OWC memory is hand-checked and tested for quality at each step in the manufacturing process. But it doesn’t stop there. We own and maintain state-of-the-art facilities that feature nearly every Mac manufactured over the past two decades. That’s because we don’t just relentlessly test for quality and reliability. We test in actual machines to make sure OWC memory is optimized to deliver a lifetime of superior performance in your Mac. It’s the OWC Difference. We’re laser-focused on helping you get the absolute most from your Mac. So we test the true memory limit of each Apple computer. We found that most Macs support more memory than the official factory maximum. With OWC memory, you can truly max out your Mac with up to double the factory-supported limit. Adding OWC memory to your Mac is one of the best things you can do to extend the life, and accelerate the performance of your computer. It’s also an upgrade you can easily install yourself. Our library of installation videos guide you through each step in the process.


Package Dimensions: 7 x 5 x 0.5 inches


Item Weight: 1.6 ounces


Manufacturer: OWC


Country of Origin: China


Item model number: 8566D3ECC8GB


Is Discontinued By Manufacturer: No


Date First Available: January 4, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works great. No heat spreader included as shown in picture
Size: 32GB Style: 4 x 8GB
Worked great for my Mac Pro (early 2009) flashed to 5,1. Easy to install. Did not come with the heat spreader as it shows in the pictures. Only reason for 4 stars. Picture is just somewhat misleading in that regard.
Reviewed in the United States 🇺🇸 on March 21, 2021 by Caleb Kolenc

  • Item is mis-labeled
Size: 32GB Style: 8 x 4GB
Item says: "OWC 32.0GB (8 x 4GB) PC8500 DDR3 ECC 1066 MHz 240 pin DIMM Memory Upgrade Kit for 2009 Mac Pro" Item ACTUALLY is 4 x 8GB. Other then that works great.
Reviewed in the United States 🇺🇸 on January 14, 2021 by J. Mccrary

  • Forestalling The Inevitable...
Size: 16GB Style: 2 x 8GB
Using an older Mac Pro (Late 2009) that is both getting long in the tooth yet has plenty of life left, upgrading the RAM a bit is what's needed when using Photoshop and RAM-sucking extensions. The additional 16GB (total of 32) helps with latency inherent with large files -- files that are up to 1.3GB when scanning large format film. Not blazing speed but I don't have to shell out +/- 2K for a newer Mac Pro or 5K for a new one. Yet. ... show more
Reviewed in the United States 🇺🇸 on November 16, 2019 by michael1213

  • Working great
Size: 8GB Style: 1 x 8GB
Works great. Sadly it didn't work in the motherboard I purchased it for. After installing it and it not working I found out my mobo only accepts up to 4GB in each slot. Luckily I had another computer that had 2 4GB sticks in it. I just swapped them and all is well. Don't be like me y'all. Make sure your motherboard can accept the size you're ordering. ... show more
Reviewed in the United States 🇺🇸 on August 24, 2018 by Garner Dix

  • Fantastic Upgrade!
Size: 32GB Style: 4 x 8GB
Wow okay. So I upgraded my mid 2010 or 1w can't remember now mac and I only had 3 gigs total. The upgrade to 32 gigs is gigantic!!! I noticed a huge difference in export and upload times. Also I was very happy with the plug and play capability with my mac :)
Reviewed in the United States 🇺🇸 on September 3, 2019 by Quality Hunter

  • As long as it works, there's nothing to add
Size: 16GB Style: 4 x 4GB
I bought this memory to help boost the speed of a 2009 Mac Pro. Installation was easy. Mac Pro isn't running any faster, unfortunately, but that has everything to do with the fact that it's an overpriced clunker and nothing to do with the memory. Why anyone would buy a Mac is beyond me. I inherited this crap box and have been trying to get it up to speed with my PC. Enought ranting. You need memory? You can't go wrong with OWC. ... show more
Reviewed in the United States 🇺🇸 on April 19, 2014 by Hard T. Please

  • memory works just fine
Size: 32GB Style: 4 x 8GB
all good gave me a memory upgrade on my mac pro to 48 gb
Reviewed in the United States 🇺🇸 on September 18, 2020 by JohnH

  • Saved me from buying a new computer
Size: 16GB Style: 4 x 4GB
I upgraded my Early 2009 Mac Pro to the new Maverick OS and it slowed down my computer so badly that I almost replaced it thinking the 2009 model wasn't fast enough for today's technologies. I installed the 16GB of RAM and now my computer is lightening fast. I am a photographer often running Photoshop, Lightroom and Indesign among other programs at the same time and my computer now handles it with no problems. I highly recommended upgrading your RAM first before buying a new computer. ... show more
Reviewed in the United States 🇺🇸 on January 4, 2014 by Deanna

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