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AddOn MEM2900-512U2.5GB-AO 2GB DDR2-667MHz ECC DRAM Module - 240-pin for Cisco 2900 Series Routers
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Product Features
Product Overview
The AddOn MEM2900-512U2.5GB-AO is a 2GB DDR2 DRAM module engineered for Cisco 2900 series integrated services routers. This factory-approved upgrade delivers reliable memory expansion to enhance router performance and stability in demanding network environments.
Built with ECC (Error-Correcting Code) technology, this module helps maintain data integrity by detecting and correcting common types of internal data corruption. The 667 MHz speed and CL5 latency provide responsive memory access, supporting efficient routing operations and application processing.
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 DRAM module operates at 1.80 volts with a 240-pin DIMM form factor, designed specifically for compatibility with Cisco 2900 series router memory slots. The single 2GB module configuration simplifies installation while providing substantial memory expansion for routing tables, security policies, and application services.
The module undergoes rigorous application and environmental testing to ensure reliable operation in Cisco router deployments. This testing validates compatibility with Cisco IOS software and hardware platforms, giving you confidence in seamless integration.
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
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 Cisco Compatibility Assurance, Enhanced Reliability with ECC.
Cisco Compatibility Assurance
Specifically tested and validated for Cisco 2901, 2911, and 2921 integrated services routers. This module meets the electrical and timing requirements of Cisco's memory specifications.
- Factory-approved for Cisco 2900 series
- Application-tested with Cisco IOS
- Guaranteed to work in supported routers
Enhanced Reliability with ECC
Error-Correcting Code memory detects and corrects single-bit errors, reducing system crashes and data corruption in mission-critical networking equipment.
- Detects and corrects memory errors
- Improves system stability
- Essential for reliable router operation
Deployment / Use Cases
This memory module is ideal for expanding the capabilities of Cisco 2900 series routers in small to medium business networks, branch offices, and enterprise edge deployments. The additional 2GB of RAM supports advanced features like security services, voice applications, and wireless controller functionality.
Common deployment scenarios include upgrading existing Cisco 2901, 2911, or 2921 routers to handle increased concurrent connections, implement comprehensive security policies with Cisco IOS Firewall or IPS, or support integrated voice and video services. The module enables these routers to process larger routing tables and maintain performance under heavier network loads.
Physical Profile
The module features a standard 240-pin DIMM form factor with a width of 2 inches (50.80 mm) and approximate weight of 8 ounces (226.80 grams). This compact design fits precisely into the memory slots of compatible Cisco routers without requiring additional space or special mounting hardware.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 2" (50.80 mm), 8 oz (226.80 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 2" (50.80 mm)
- Weight
- 8 oz (226.80 g)
Highlights
- 2GB DDR2-667MHz ECC DRAM module for Cisco routers
- Specifically compatible with Cisco 2901, 2911, and 2921 models
- 240-pin DIMM form factor with 1.80V operation
- CL5 latency for responsive memory performance
- Error-Correcting Code (ECC) for enhanced data integrity
- Factory tested and guaranteed to work in supported devices
- Single module configuration for easy installation
- Lifetime warranty for long-term reliability
Specifications
| Specifications | |
|---|---|
| Manufacturer | AddOn |
| Manufacturer Part Number | MEM2900-512U2.5GB-AO |
| Brand Name | AddOn |
| Product Model | MEM2900-512U2.5GB-AO |
| Product Name | FACTORY APPROVED 2GB DRAM UPG F/CISCO 2900 SRS |
| Packaged Quantity | 1 |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 2 GB |
| Memory Technology | DRAM |
| Memory Voltage | 1.80 V |
| Number of Modules | 1 x 2GB |
| Memory Speed | 667 MHz |
| Error Checking | ECC |
| CAS Latency | CL5 |
| Device Supported | Router |
| Physical Characteristics | |
| Number of Pins | 240-pin |
| Width | 2" (50.80 mm) |
| Weight (Approximate) | 8 oz (226.80 g) |
| Miscellaneous | |
| Compatibility | Cisco Integrated Services Routers: 2901 2911 2921 |
| Country of Origin | China |
| TAA Compliant | No |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What Cisco router models is this memory module compatible with?
This AddOn MEM2900-512U2.5GB-AO module is specifically designed and tested for Cisco 2900 series integrated services routers, including models 2901, 2911, and 2921. It has undergone application testing with Cisco IOS software to ensure proper functionality in these router platforms.
What are the benefits of ECC memory in a router?
ECC (Error-Correcting Code) memory detects and corrects single-bit memory errors that can occur during operation. In networking equipment like routers, this helps prevent data corruption, reduces system crashes, and maintains network stability—particularly important for mission-critical routing functions and security processing.
What is the memory speed and how does it affect router performance?
This module operates at 667 MHz with CL5 latency. The 667 MHz speed determines how quickly the memory can transfer data, while the CL5 latency indicates the delay between receiving a command and executing it. Together, these specifications enable responsive memory access that supports efficient routing table lookups, packet processing, and application services in Cisco 2900 series routers.
Is this a single module or does it come as a kit?
This product includes one 2GB DDR2 memory module. The single-module configuration simplifies installation while providing substantial memory expansion for compatible Cisco routers. You can install it individually or combine it with existing memory modules according to your router's memory configuration guidelines.
What does the lifetime warranty cover?
The lifetime warranty covers defects in materials and workmanship for the life of the product. If the module fails under normal use in compatible equipment, AddOn will repair or replace it. This warranty demonstrates the manufacturer's confidence in the module's reliability and durability for long-term deployment in networking environments.
What is the form factor and installation requirements?
This module uses a 240-pin DIMM form factor measuring 2 inches wide. It operates at 1.80 volts and is designed to fit precisely into the memory slots of compatible Cisco 2900 series routers. Installation requires standard anti-static precautions and typically involves opening the router chassis, locating the memory slots, and securely seating the module according to Cisco's installation guidelines.
| Qty | Price | Available |
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