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Samsung M321RAGA0B20-CWK 128GB DDR5-4800MHz RDIMM 4Rx4 CL40 Memory
- 128GB DDR5 RDIMM capacity
- Speed: 4800MHz (PC5-38400)
- Latency: CL40
- Rank: 4Rx4 (Quad Rank, x4 organization)
- ECC (Error-Correcting Code) support for data integrity
- Registered DIMM (RDIMM) for server environments
- Designed for high-density memory configurations
- Optimized for server and workstation performance
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Product Overview
The Samsung M321RAGA0B20-CWK is a high-capacity 128GB DDR5 RDIMM memory module designed for servers and high-performance workstations. It operates at a speed of 4800MHz with CL40 latency, providing significant memory bandwidth for demanding applications.
Technical Information
| Memory Type | DDR5 SDRAM |
| Form Factor | RDIMM (Registered DIMM) |
| Capacity | 128GB |
| Speed | 4800MHz |
| Module Type | PC5-38400 |
Additional Specifications
| CAS Latency | CL40 |
| Rank | 4Rx4 |
| ECC | Yes |
| Voltage | 1.1V (Typical for DDR5) |
Product Description
The Samsung M321RAGA0B20-CWK is a high-performance 128GB DDR5 Registered DIMM (RDIMM) module, engineered to meet the rigorous demands of modern server and workstation environments. DDR5 technology represents a significant leap forward in memory performance, offering higher speeds, increased bandwidth, and improved power efficiency compared to previous generations. This module operates at a rapid 4800MHz frequency, providing substantial memory bandwidth crucial for data-intensive tasks such as large-scale data analysis, complex simulations, and high-density virtualization. This specific module is a Quad Rank (4Rx4) RDIMM. The 'Registered' aspect means it includes a register chip that buffers command and address signals, reducing electrical load on the memory controller and allowing for higher memory capacities and densities. The Quad Rank configuration further enhances density and performance by dividing the memory chips into four groups, allowing for more simultaneous access. The CL40 CAS Latency indicates the number of clock cycles it takes for the memory to respond to a request, which, while higher than some lower-density modules, is typical for high-capacity DDR5 RDIMMs and balanced by the increased speed and bandwidth. With its substantial 128GB capacity and robust DDR5 specifications, the M321RAGA0B20-CWK is ideal for applications requiring massive amounts of memory. It includes Error-Correcting Code (ECC) functionality, which detects and corrects single-bit errors in real-time, significantly enhancing data integrity and system stability – a critical feature for mission-critical server operations. This memory module is designed to be a cornerstone for building powerful, reliable, and scalable computing systems.



