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Samsung M386AAK40B40-CWD 128GB DDR4-2666MHz LRDIMM 8Rx4 CL19 Memory
- Samsung 128GB DDR4 Load-Reduced DIMM (LRDIMM).
- Memory Speed: 2666MHz.
- CAS Latency: CL19.
- Rank: 8Rx4 (Octa-rank, x4 data width).
- Designed for servers and high-performance workstations.
- Provides high memory capacity and bandwidth.
- Supports advanced memory technologies for stability.
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Product Overview
The Samsung M386AAK40B40-CWD is a 128GB DDR4 LRDIMM memory module. It operates at 2666MHz with a CL19 latency, designed for high-capacity server and workstation applications requiring significant memory bandwidth and performance.
Technical Information
| Product Type | Memory Module |
| Capacity | 128GB |
| Memory Type | DDR4 |
| Form Factor | LRDIMM |
Additional Specifications
| Speed | 2666MHz |
| CAS Latency | CL19 |
| Rank | 8Rx4 |
| Manufacturer | Samsung |
Product Description
The Samsung M386AAK40B40-CWD is a high-capacity 128GB DDR4 memory module engineered for demanding server and workstation environments. As a Load-Reduced DIMM (LRDIMM), it incorporates a memory buffer chip that reduces the electrical load on the memory controller. This design allows for higher memory densities and more memory modules to be installed per channel, significantly increasing the total system memory capacity and improving signal integrity, which is crucial for stability in systems with large amounts of RAM. Operating at a speed of 2666MHz with a CAS Latency (CL) of 19, this module offers a balance of performance and capacity. The 8Rx4 configuration indicates it is an octa-rank module with a x4 data width per rank, further contributing to its high density and performance characteristics. DDR4 technology represents a significant advancement over previous DDR generations, offering higher speeds, lower power consumption, and improved efficiency, making it the standard for modern computing platforms. This specific Samsung LRDIMM is ideal for applications that are memory-intensive, such as large-scale virtualization, in-memory databases, high-performance computing (HPC), and complex data analytics. By providing a substantial 128GB of memory, it enables systems to handle larger datasets and more concurrent processes without performance degradation. The M386AAK40B40-CWD is a key component for building powerful, scalable, and reliable server infrastructure.


