---
product_id: 1741575
title: "OWC16GB (4x4GB) DDR3 ECC Unbuffered CL7 PC3-8500 1066MHz SDRAM Memory Ram Upgrade Module Compatible with 2009-2010 Mac Pro Nehalem, Xserve 2009 (OWC85MP3W4M16GK)"
brand: "owc"
price: "€ 105.94"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/1741575-owc16gb-4x4gb-ddr3-ecc-unbuffered-cl7-pc3-8500-1066mhz-sdram
store_origin: GR
region: Greece
---

# 16GB RAM Compatible with Mac Pro ECC Technology OWC16GB (4x4GB) DDR3 ECC Unbuffered CL7 PC3-8500 1066MHz SDRAM Memory Ram Upgrade Module Compatible with 2009-2010 Mac Pro Nehalem, Xserve 2009 (OWC85MP3W4M16GK)

**Brand:** owc
**Price:** € 105.94
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Performance with OWC Memory!

## Quick Answers

- **What is this?** OWC16GB (4x4GB) DDR3 ECC Unbuffered CL7 PC3-8500 1066MHz SDRAM Memory Ram Upgrade Module Compatible with 2009-2010 Mac Pro Nehalem, Xserve 2009 (OWC85MP3W4M16GK) by owc
- **How much does it cost?** € 105.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1741575-owc16gb-4x4gb-ddr3-ecc-unbuffered-cl7-pc3-8500-1066mhz-sdram)

## Best For

- owc enthusiasts

## Why This Product

- Trusted owc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stability Meets Speed:** Experience enhanced performance with 1066MHz speed and ECC technology.
- • **Lightweight Powerhouse:** Weighing just 8 ounces, this memory pack is as efficient as it is effective.
- • **Seamless Compatibility:** Engineered for Mac Pro and Xserve models, ensuring a perfect fit.
- • **Future-Proof Your Setup:** Stay ahead of the curve with a reliable upgrade that won't go out of style.
- • **Unleash Your Mac's Potential:** Transform your Mac Pro with a powerful 16GB DDR3 ECC memory upgrade.

## Overview

The OWC 16GB (4 x 4GB) PC8500 DDR3 ECC 1066MHz DIMMs Memory is designed for Mac Pro and Xserve models, providing a robust 16GB capacity with reliable ECC technology for enhanced stability and performance. Weighing only 8 ounces and measuring 6 x 3.7 x 1.3 inches, this memory upgrade is a perfect blend of power and efficiency.

## Description

OWC16GB (4x4GB) DDR3 ECC Unbuffered CL7 PC3-8500 1066MHz SDRAM Memory Ram Upgrade Module Compatible with 2009-2010 Mac Pro Nehalem, Xserve 2009 (OWC85MP3W4M16GK)

## Features

- OWC 16GB (4 x 4GB) PC10600 DDR3 ECC 1333MHz DIMMs Memory
- Capacity 16GB (4 x 4GB)
- Compatible With Mac Pro 4-Core (Early 2009 - 2012) Model ID: MacPro4,1 Model ID: MacPro5,1 // Mac Pro 8-Core (Early 2009 - 2010) Model ID: MacPro4,1 Model ID: MacPro5,1
- Compatible With Mac Pro 6-Core (Mid 2010 - 2012) Model ID: MacPro5,1 // Mac Pro 12-Core (Mid 2010 - 2012) Model ID: MacPro5,1
- Compatible With Xserve Xeon (Early 2009) Model ID: Xserve3,1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| RAM | 16 GB DDR3 ECC 1066MHz |
| Memory Speed | 1066 MHz |
| Brand | OWC |
| Item model number | 85MP3W4M16GK |
| Item Weight | 8 ounces |
| Product Dimensions | 6 x 3.7 x 1.3 inches |
| Item Dimensions  LxWxH | 6 x 3.7 x 1.3 inches |
| Computer Memory Type | DDR3 SDRAM |
| Voltage | 1.5 Volts |
| Manufacturer | Other World Computing |
| ASIN | B00DUGOYKS |
| Country of Origin | China |
| Is Discontinued By Manufacturer | No |
| Date First Available | August 10, 2010 |

## Images

![OWC16GB (4x4GB) DDR3 ECC Unbuffered CL7 PC3-8500 1066MHz SDRAM Memory Ram Upgrade Module Compatible with 2009-2010 Mac Pro Nehalem, Xserve 2009 (OWC85MP3W4M16GK) - Image 1](https://m.media-amazon.com/images/I/81qKAafn4pL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Do these include the Apple Specified Thermal Sensor?**
A: James, I don't know for sure if the module has the temp sensor. What I can say is that the memory works flawlessly, fits perfectly and the fans on my Mac have stayed just as quiet as before the upgrade.

**Q: Is this kit compatible with Acer laptops?**
A: Hi Martini, It's very unlikely that this would be compatible with any laptop unfortunately.  These are full-sized RAM modules meant (primarily) for Mac Pro desktop computers.  If you have other questions you can get in touch with our expert support team at owcdigital.com/support

**Q: Does tgis work on a gygabyte duel bios motherboard**
A: Hi James!  If that motherboard supports 1066MHz DDR3 ECC RAM, then absolutely.  Know that ECC RAM support tends to be primarily for specialty (Enterprise/Server) applications and Mac computers, so your motherboard may not support this RAM. If you have more detailed questions feel free to get in touch with our expert support team at owcdigital.com/supportHope this helps, have a great day!

**Q: Will this work with existing udimm that came with the xserve 3,1 ?**
A: Hello.  This memory should work fine with any existing memory in the XServe.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-02*