Crucial

Crucial CT2G3S1067M 2GB DDR3 1066MHz SODIMM Memory

Name: Crucial CT2G3S1067M 2GB DDR3 1066MHz SODIMM Memory
Brand: Crucial
SKU: CT2G3S1067M

A reliable 2GB DDR3 SODIMM upgrade to breathe new life into older Mac systems running at 1066 MT/s.

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Overview

The Crucial CT2G3S1067M is a 2GB DDR3 SODIMM running at 1066 MT/s (PC3-8500) with CL7 latency, purpose-built for Mac systems that use the 204-pin small-outline form factor. Crucial, a brand of Micron Technology — one of the world's largest memory manufacturers — subjects every module to rigorous testing, so compatibility and reliability are strong points. For owners of older MacBooks, MacBook Pros, and iMacs from roughly 2008 to 2010, this module offers a low-cost path to improved system responsiveness, whether you are adding it as a second stick for dual-channel mode or replacing a failed module.

Installation is straightforward on Mac models with user-accessible memory slots: power down, open the memory compartment, seat the module, and boot up. macOS recognizes the new memory automatically with no driver or software configuration needed. While 2GB is modest by current standards, it can make a meaningful difference on these older machines — particularly when upgrading from the base configuration or restoring a system to its original capacity after a module failure. For users looking to keep a legacy Mac running for light browsing, email, and document work, this Crucial module is a practical and proven solution.

Specifications

Brand

Crucial

Model

CT2G3S1067M

Capacity

2GB

Memory Type

DDR3

Speed

1066 MT/s (PC3-8500)

Form Factor

SODIMM

Pin Count

204-Pin

CAS Latency

CL7

Compatibility

Mac Systems

Pros & Cons

👍 Pros

Backed by Crucial's reputation for reliable, tested memory modules.
204-pin SODIMM form factor is easy to install in user-serviceable Mac laptops and desktops.
CL7 latency provides responsive performance at the 1066 MT/s speed tier.
Cost-effective way to extend the useful life of an older Mac rather than replacing the entire machine.
Straightforward plug-and-play installation with no software configuration required.

👎 Cons

2GB capacity is minimal by modern standards and may not significantly improve performance for memory-intensive tasks.
DDR3 1066 MT/s speed is outdated and only relevant for older systems — not compatible with newer DDR4 or DDR5 machines.
Single module does not enable dual-channel mode on its own; a second matching module is needed for that benefit.
Limited to Mac and legacy laptop systems that still use the 204-pin DDR3 SODIMM form factor.

Frequently Asked Questions

Which Mac models is this memory compatible with?

The CT2G3S1067M is designed for Mac systems that use DDR3 1066 MT/s (PC3-8500) SODIMMs, including various MacBook, MacBook Pro, and iMac models from the 2008–2010 era. Check Crucial's compatibility tool for your specific model.

Can I mix this 2GB module with a different size module?

Yes, most compatible Macs support mixed module sizes, though using matched pairs is recommended for optimal dual-channel performance.

Is this the same as PC3-8500 memory?

Yes. DDR3 1066 MT/s and PC3-8500 refer to the same speed specification — they are interchangeable designations.

Does installing this module void my Mac's warranty?

RAM upgrades on user-serviceable Mac models are considered a user-installable part by Apple and generally do not void the warranty.

Will this work in a Windows laptop?

While this module is marketed for Mac systems, any laptop that accepts 204-pin DDR3 1066 MT/s SODIMMs at CL7 timings may be compatible.