Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
AddOn MA940G/A-AA 4GB - 2 x 2GB DDR2-667MHz SODIMM - 200-pin - Unbuffered - Dual Rank - CL5 - 1.8V
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Product Overview
The AddOn MA940G/A-AA memory kit delivers 4GB of DDR2 SDRAM in a 2x2GB SODIMM configuration, engineered for compatibility with specific Apple desktop and notebook systems. This kit operates at 667MHz with CL5 latency, providing a balanced performance upgrade for systems that support DDR2-667/PC2-5300 memory standards.
Designed with a 200-pin SODIMM form factor, this memory is physically compatible with the memory slots in supported Apple iMac, MacBook, and MacBook Pro models. The unbuffered, dual-rank architecture and 1.8V operating voltage align with the electrical requirements of these systems, ensuring stable operation and improved multitasking capability.
Relevant factors for this section include Memory Size, Memory Technology, Memory Voltage, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Technical Overview
This memory kit implements DDR2 SDRAM technology, which provides a 400MHz data bus speed for efficient data transfer while maintaining lower power consumption compared to earlier DDR standards. The 667MHz clock speed and CL5 latency timing work together to reduce memory access delays, which can help improve overall system responsiveness during everyday computing tasks.
The dual-rank design allows the memory controller to access more banks simultaneously, which can enhance performance in certain workloads. As an unbuffered, non-ECC module, this memory does not include error correction circuitry, making it suitable for consumer and business systems where ECC protection is not required.
Relevant factors for this section include Memory Size, Memory Technology, Memory Voltage, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This AddOn memory kit provides a targeted upgrade path for specific Apple systems that utilize DDR2 memory technology. The combination of 667MHz speed and CL5 latency offers a performance improvement over standard 533MHz DDR2 memory, potentially reducing application load times and improving system fluidity.
Apple System Compatibility
Designed specifically for compatibility with Apple iMac (20" and 24" Core 2 Duo models), MacBook (13.3" Core 2 Duo models), and MacBook Pro (15.4" and 17" Core 2 Duo models) systems that support DDR2-667 memory.
- iMac 2.0GHz-2.8GHz Core 2 Duo models
- MacBook 2.0GHz-2.4GHz Core 2 Duo models
- MacBook Pro 2.4GHz-2.5GHz Core 2 Duo models
Physical Design
The SODIMM form factor measures 3.75" wide with a 0.50" thickness, designed to fit the compact memory slots in compatible notebook and all-in-one desktop systems.
- Compact 200-pin SODIMM design
- Standard SODIMM dimensions
- 12 oz approximate weight
Deployment / Use Cases
This memory kit serves as a direct replacement or upgrade for the original memory in compatible Apple systems. It's particularly valuable for users seeking to extend the usable life of their Apple hardware by increasing available memory for modern applications and multitasking scenarios.
The 4GB total capacity represents a meaningful upgrade from the 2GB configurations commonly found in these systems when new. This additional memory can help improve performance when running multiple applications simultaneously, working with larger documents, or using memory-intensive software that benefits from increased available RAM.
Physical Profile
The memory modules feature a standard SODIMM form factor measuring 3.75" (95.25 mm) in width with a 0.50" (12.70 mm) thickness. This compact design allows installation in the memory slots of compatible Apple notebook and all-in-one desktop systems. The modules have an approximate weight of 12 oz (340.19 g) for the pair, contributing minimal additional weight to portable systems.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 3.75" (95.25 mm), 12 oz (340.19 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 3.75" (95.25 mm)
- Weight
- 12 oz (340.19 g)
Highlights
- 4GB total capacity in a 2x2GB configuration for balanced dual-channel performance
- DDR2 SDRAM technology operating at 667MHz with CL5 latency timing
- 200-pin SODIMM form factor compatible with Apple notebook and desktop systems
- Unbuffered, dual-rank architecture without ECC for consumer/business systems
- 1.8V operating voltage for reduced power consumption and heat generation
- Specifically compatible with Apple iMac, MacBook, and MacBook Pro Core 2 Duo models
- DDR2-667/PC2-5300 memory standard compliance
- Manufactured in the United States with lifetime warranty coverage
Specifications
| Specifications | |
|---|---|
| Manufacturer | AddOn |
| Manufacturer Part Number | MA940G/A-AA |
| Brand Name | AddOn |
| Product Name | 2GB DDR2 667MHZ 200-pin SODIMM F/Apple Notebooks |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 4 GB |
| Memory Technology | DDR2 SDRAM |
| Memory Voltage | 1.80 V |
| Number of Modules | 2 x 2GB |
| Memory Speed | 667 MHz |
| Memory Standard | DDR2-667/PC2-5300 |
| Memory Rank | Dual-rank |
| Error Checking | Non-ECC |
| Signal Processing | Unbuffered |
| CAS Latency | CL5 |
| Device Supported | Notebook,Desktop PC |
| Physical Characteristics | |
| Number of Pins | 200-pin |
| Form Factor | SODIMM |
| Thickness | 0.50" (12.70 mm) |
| Width | 3.75" (95.25 mm) |
| Weight (Approximate) | 12 oz (340.19 g) |
| Miscellaneous | |
| Compatibility | Apple Notebooks: iMac 2.0GHz Core 2 Duo 20" Anodized Aluminum (MA876LL) iMac 2.4GHz Core 2 Duo 20" Anodized Aluminum (MA877LL) iMac 2.4GHz Core 2 Duo 24" Anodized Aluminum (MA878LL) iMac 2.8GHz Core 2 Duo Extreme 24" Anodized Aluminum (Z0FC) MacBook 2.0GHz 13.3" (MB061LL/B) MacBook 2.10GHz 13.3" White (MB402LL/A) MacBook 2.2GHz 13.3" (MB062LL/B) MacBook 2.2GHz 13.3" Black (MB063LL/B) MacBook 2.40GHz 13.3" Black (MB404LL/A) MacBook 2.40GHz 13.3" White (MB403LL/A) MacBook Pro 2.40GHz 15.4" (MB133LL/A) MacBook Pro 2.50GHz 15.4" (MB134LL/A) MacBook Pro 2.50GHz 17.0" (MB166LL/A) |
| Country of Origin | United States |
| TAA Compliant | No |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the total memory capacity of this kit?
This AddOn memory kit provides 4GB of total DDR2 SDRAM capacity, delivered as two 2GB modules. This configuration supports dual-channel operation in compatible systems, which can provide improved memory bandwidth compared to single-module configurations.
What type of systems is this memory compatible with?
This memory is specifically designed for Apple iMac, MacBook, and MacBook Pro systems with Core 2 Duo processors that support DDR2-667 memory. The compatibility list includes specific Apple part numbers such as MA876LL, MA877LL, MA878LL for iMac models, and MB061LL/B through MB166LL/A for MacBook and MacBook Pro models.
What is the memory speed and latency of these modules?
These modules operate at 667MHz with CL5 latency timing. The DDR2-667/PC2-5300 standard provides a data transfer rate that can help improve system responsiveness in compatible Apple systems, particularly when upgrading from slower 533MHz DDR2 memory.
What form factor does this memory use?
This memory uses the 200-pin Small Outline Dual In-line Memory Module (SODIMM) form factor, which is the standard for notebook and compact desktop systems. The modules measure 3.75" wide with a 0.50" thickness, designed to fit the memory slots in compatible Apple systems.
Does this memory support ECC error correction?
No, this is non-ECC unbuffered memory. It does not include error checking and correction circuitry, which makes it suitable for consumer and business systems where ECC protection is not required. The dual-rank architecture provides additional memory banks without the error correction features of ECC memory.
What warranty coverage does this memory include?
This AddOn memory kit includes lifetime warranty coverage. The modules are manufactured in the United States and designed for reliable operation in compatible Apple systems. The warranty provides protection against defects in materials and workmanship for the life of the product.
| Qty | Price | Available |
|---|
