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Home/All Brands/OWC/4GB OWC Memory Module (1 x 4GB) 667MHz PC2-5300 DDR2 ECC Registered SDRAM - Discontinued
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4GB OWC Memory Module (1 x 4GB) 667MHz PC2-5300 DDR2 ECC Registered SDRAM - Discontinued

4GB OWC Memory Module (1 x 4GB) 667MHz PC2-5300 DDR2 ECC Registered SDRAM - Discontinued


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Product Information


Upgrade the memory in your Mac Pro using the OWC 4GB 667MHz PC2-5300 DDR2 Memory Module (1 x 4GB)

OWC memory modules are made for Mac and rigorously lab tested to deliver the maximum in compatibility, performance and reliability. They also meet or exceeds Apple specifications and are fully compliant with JEDEC specifications and are RoHS Certified.

This memory kit features a total capacity of 4GB, which is made of up 1 x 4GB module. It has a clock speed of 667MHz, a bus speed of PC3-5300 and a 240-pin FB-DIMM form factor. It also operates using 1.8V, has 5-5–5 timings, a module bandwidth of 5.3GB/s, a component configuration of 512M x 72 and is equipped with ECC technology

By offering ECC (Error Checking and Correcting) technology, this RAM will help your workstation encounter fewer errors that can corrupt data sets and introduce system issues. Additionally, this memory module has an Apple Specified Thermal Sensor, which ensures that the RAM maintains a safe thermal operating range.

  • Easy to Install
  • Boost the performance of your Mac
  • Improve the speed of your operating system and applications
  • Run more applications simultaneously
  • Rigorously in-house lab tested
  • Meets and Exceeds Apple Design Specifications
  • Apple Warranty Safe Upgrade
  • Lifetime Limited Warranty


Module Capacity
4GB (4096MB) per module
Pin Count
240-pin FB-DIMM
512M x 72, Dual Rank ECC Module
CAS 5-5-5
Module Bandwidth
Data Rate

What's in the box

  • 1 x 4GB OWC Memory Module 667MHz PC2-5300 DDR2

Manufacturer Information

Part Number



  • Lifetime Limited Warranty

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