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4491-9406 - IBM 16GB Kit (4 X 4GB) DDR-266MHz PC2100 ECC Registered CL2.5 208-Pin DIMM Memory
- Total Capacity: 16GB Kit (4 x 4GB modules).
- Memory Type: DDR SDRAM.
- Speed: PC2100 (266MHz).
- Form Factor: Micro-DIMM.
- Configuration: 4 ranks x 8 bits (4Rx8).
- CAS Latency: CL2.5.
- Designed for specific server or workstation applications.
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Key specifications
See full specs ↓- Product Type
- Memory Kit
- Total Capacity
- 16GB
- Module Size
- 4GB
- Number of Modules
- 4
- Memory Technology
- DDR SDRAM
- Speed
- 266MHz (PC2100)
Product details
The IBM 4491-9406 is a 16GB memory kit consisting of four 4GB DDR-266MHz Micro-DIMM modules. It is designed for systems requiring high-density memory with specific timing and speed characteristics.
Technical Information
| Product Type | Memory Kit |
| Total Capacity | 16GB |
| Module Size | 4GB |
| Number of Modules | 4 |
| Memory Technology | DDR SDRAM |
| Speed | 266MHz (PC2100) |
Additional Specifications
| Form Factor | Micro-DIMM |
| Rank | 4Rx8 |
| CAS Latency | CL2.5 |
| Brand | IBM |
| Part Number | 4491-9406 |
Description
The IBM 4491-9406 is a high-performance memory kit designed to enhance the capabilities of compatible systems. This kit provides a total of 16GB of RAM, distributed across four individual 4GB Micro-DIMM modules. The DDR SDRAM technology ensures efficient data transfer, operating at a speed of 266MHz, which corresponds to the PC2100 standard. Each module is configured as 4 ranks x 8 bits (4Rx8), a specification that influences memory performance and density. The CAS Latency is set at CL2.5, indicating the number of clock cycles required for the memory controller to access data from the memory module. This combination of speed, rank configuration, and latency is optimized for specific computing environments that demand precise memory performance. This Micro-DIMM form factor is typically used in compact systems such as certain laptops, small form factor PCs, or specialized server configurations where space is a constraint. The 4491-9406 kit is intended for users who require a significant memory upgrade with specific technical attributes to meet the demands of their applications or operating systems.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
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