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Dell A21427981 8GB DDR3-1066MHz RDIMM 2Rx4 CL7 Memory
- Capacity: 8GB
- Type: DDR3 SDRAM
- Form Factor: RDIMM (Registered DIMM)
- Speed: 1066MHz (PC3-8500R)
- Rank: 2Rx4 (Dual Rank x4)
- Latency: CL7
- Voltage: 1.5V
- ECC: Yes (Registered ECC)
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Product Overview
The Dell A21427981 is an 8GB DDR3 Registered DIMM (RDIMM) memory module. It operates at a speed of 1066MHz with a 2Rx4 configuration and CL7 latency, designed for Dell servers requiring ECC memory.
Technical Information
| Product Type | Memory Module |
| Manufacturer | Dell |
| Part Number | A21427981 |
| Capacity | 8GB |
| Memory Technology | DDR3 SDRAM |
| Form Factor | RDIMM |
Additional Specifications
| Speed | 1066MHz |
| Module Type | PC3-8500R |
| Rank | 2Rx4 |
| CAS Latency | CL7 |
| ECC | Registered ECC |
Product Description
The Dell A21427981 is an 8GB DDR3 Registered DIMM (RDIMM) memory module, specifically designed to enhance the performance and reliability of Dell servers. Operating at a frequency of 1066MHz, this module provides ample capacity for memory-intensive applications and multitasking environments. The RDIMM architecture incorporates an onboard register that buffers address and control signals, reducing the electrical load on the memory controller and enabling support for higher memory capacities and improved system stability, which is crucial for enterprise-grade servers. This memory module features a 2Rx4 configuration, indicating it is dual-rank with each rank utilizing x4 data-width DRAM chips. Dual-rank modules can offer performance advantages through memory interleaving, allowing the memory controller to access different ranks concurrently. The CAS latency (CL) of 7 signifies a relatively low latency, meaning the memory can respond to data requests quickly, contributing to overall system responsiveness. Equipped with Registered ECC (Error-Correcting Code) functionality, the A21427981 is capable of detecting and correcting single-bit errors, thereby ensuring data integrity and enhancing system stability. This feature is vital for mission-critical server operations where data accuracy and uptime are paramount. The module operates at a standard voltage of 1.5V and is built to meet the demanding requirements of server environments.


