AddOn AA667D2N51GB 1GB DDR2-667MHz PC2-5300240-pin DIMM Desktop Memory - CL5 Dual-rank Unbuffered
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Product Features
Product Overview
The AddOn AA667D2N51GB is a 1GB DDR2-667MHz memory module designed for desktop PC upgrades. This 240-pin DIMM operates at PC2-5300 standards with CL5 latency, delivering reliable performance for everyday computing tasks.
Built with dual-rank unbuffered architecture and non-ECC error checking, this module offers stable operation at 1.80V. The standard DIMM form factor ensures compatibility with a wide range of desktop motherboards that support DDR2 memory technology.
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.
In practical terms, this overview should help a buyer understand what the product is, the type of environment it suits, and the core reasons it may be chosen over a more generic alternative. That context is especially useful for business purchasing, where fit, consistency, and ease of use usually matter as much as individual specifications.
Technical Overview
This memory module utilizes DDR2 SDRAM technology with a 667MHz clock speed and PC2-5300 memory standard. The dual-rank design provides efficient data handling while the unbuffered architecture maintains direct communication with the memory controller.
The module features a CAS latency of CL5, balancing speed and stability for consistent performance. With 240-pin DIMM configuration and standard desktop PC compatibility, this memory is engineered for straightforward installation and reliable operation.
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.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
This AddOn memory module delivers essential performance improvements for aging desktop systems requiring memory upgrades. The DDR2-667MHz specification provides a solid foundation for multitasking and application responsiveness.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Reliable Performance, Broad Compatibility.
Reliable Performance
The 667MHz operating speed with CL5 latency ensures responsive system performance for everyday computing tasks, from office applications to web browsing.
- 667MHz clock speed
- CL5 latency timing
- Dual-rank architecture
Broad Compatibility
Designed as a standard 240-pin DIMM for desktop PCs, this module fits most DDR2-compatible motherboards without requiring specialized configuration.
- 240-pin DIMM form factor
- Desktop PC compatibility
- Unbuffered design
Deployment / Use Cases
This 1GB DDR2 memory module is ideal for upgrading older desktop systems that require additional memory capacity. It serves as a cost-effective solution for extending the usable life of DDR2-era computers.
Common deployment scenarios include office workstations needing memory upgrades for improved multitasking, home computers requiring performance enhancements for basic applications, and legacy systems where DDR2 memory remains the supported standard. The module works well as a single upgrade or as part of a matched pair configuration in compatible systems.
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.
Physical Profile
The module measures 6" (152.40 mm) in length, 2.50" (63.50 mm) in width, and 0.75" (19.05 mm) in thickness, conforming to standard DIMM dimensions for easy installation in desktop memory slots. Weighing approximately 1.60 oz (45.36 g), it maintains a lightweight profile while providing durable construction for reliable long-term operation.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 2.50" (63.50 mm), 1.60 oz (45.36 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 2.50" (63.50 mm)
- Weight
- 1.60 oz (45.36 g)
- Length
- 6" (152.40 mm)
Highlights
- 1GB DDR2-667MHz memory capacity for desktop PC upgrades
- PC2-5300 standard with 667MHz operating speed
- 240-pin DIMM form factor for broad motherboard compatibility
- CL5 CAS latency for balanced performance and stability
- Dual-rank unbuffered architecture for efficient data handling
- Non-ECC error checking suitable for standard desktop applications
- 1.80V operating voltage for power-efficient operation
- Manufactured in the United States with lifetime limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | AddOn |
| Manufacturer Part Number | AA667D2N51GB |
| Brand Name | AddOn |
| Product Name | 1GB DDR2 SDRAM Memory Module |
| Packaged Quantity | 1 |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 1 GB |
| Memory Technology | DDR2 SDRAM |
| Memory Voltage | 1.80 V |
| Number of Modules | 1 x 1GB |
| 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 | Desktop PC |
| Physical Characteristics | |
| Number of Pins | 240-pin |
| Form Factor | DIMM |
| Thickness | 0.75" (19.05 mm) |
| Width | 2.50" (63.50 mm) |
| Length | 6" (152.40 mm) |
| Weight (Approximate) | 1.60 oz (45.36 g) |
| Miscellaneous | |
| Country of Origin | United States |
| TAA Compliant | No |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What type of systems is this memory module compatible with?
This AddOn memory module is compatible with desktop PCs that support DDR2 memory technology. It requires a motherboard with 240-pin DIMM slots and DDR2-667/PC2-5300 memory support. The unbuffered non-ECC design makes it suitable for standard desktop systems rather than servers or workstations requiring ECC memory.
What is the difference between DDR2-667 and PC2-5300?
DDR2-667 refers to the memory technology and clock speed of 667MHz, while PC2-5300 indicates the theoretical bandwidth of 5300 MB/s. These terms describe the same memory standard from different perspectives - the clock speed versus the data transfer rate. This module meets both specifications for consistent performance.
What does CL5 latency mean for this memory module?
CL5 (CAS Latency 5) indicates that there are 5 clock cycles between when a memory controller requests data and when that data becomes available. This latency timing balances performance and stability for DDR2 memory, providing responsive operation while maintaining reliable data access for everyday computing tasks.
Can I use this memory module with existing DDR2 memory in my system?
This module can potentially be used alongside existing DDR2 memory if all modules share the same specifications including speed, latency, and voltage. For optimal compatibility, it's recommended to use identical modules or consult your motherboard manufacturer's memory compatibility guidelines before mixing different memory modules.
What is the advantage of dual-rank memory architecture?
Dual-rank architecture allows the memory module to organize its memory chips into two independent groups that can be accessed separately. This design can improve memory efficiency by allowing the memory controller to access one rank while the other is refreshing, potentially increasing overall system performance compared to single-rank modules in compatible systems.
How does the 1.80V operating voltage benefit system performance?
The 1.80V operating voltage represents the standard power requirement for DDR2 memory technology. This voltage level provides sufficient power for stable operation at 667MHz while maintaining reasonable power consumption and heat generation. Lower voltage than older DDR memory helps improve energy efficiency and thermal management in desktop systems.
| Qty | Price | Available |
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