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Samsung M393AAK40B42-CWD6Y 128GB DDR4-2666MHz RDIMM 8Rx4 CL19 Memory
- Capacity: 128GB
- Type: DDR4 RDIMM (Registered DIMM)
- Speed: 2666MHz
- Rank: 8Rx4 (8 Ranks, 4 Banks per Rank)
- Latency: CL19
- Voltage: Standard DDR4 voltage (typically 1.2V)
- ECC: Yes (Error-Correcting Code)
- Form Factor: DIMM
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Product Overview
This Samsung 128GB DDR4 RDIMM memory module is designed for high-performance servers and workstations. It operates at a speed of 2666MHz with a CAS latency of 19, providing ample capacity and speed for demanding applications and large datasets.
Technical Information
| Memory Type | DDR4 SDRAM |
| Form Factor | RDIMM |
| Capacity | 128GB |
| Speed | 2666MHz |
Additional Specifications
| CAS Latency | CL19 |
| Rank | 8Rx4 |
| Voltage | 1.2V |
| ECC | Registered ECC |
Product Description
The Samsung M393AAK40B42-CWD6Y is a high-density 128GB DDR4 Registered DIMM (RDIMM) module, engineered for enterprise-level computing environments. Its 8Rx4 configuration signifies eight ranks of memory chips, each with four internal banks, optimizing data access and bandwidth utilization within compatible server and workstation platforms. This configuration is crucial for systems requiring substantial memory capacity to handle complex simulations, large databases, and virtualized environments. Operating at a frequency of 2666MHz, this module delivers robust performance for memory-intensive tasks. The CAS Latency (CL) of 19 indicates the number of clock cycles required to access data, a standard for this speed class. As an RDIMM, it features an onboard register that buffers command and address signals, reducing electrical load on the memory controller and allowing for higher memory capacities and improved signal integrity, especially in multi-module configurations. This makes it ideal for servers where stability and capacity are paramount. Furthermore, this memory module supports Error-Correcting Code (ECC), which detects and corrects single-bit errors in real-time, significantly enhancing data integrity and system reliability. This feature is indispensable in mission-critical applications where data accuracy is non-negotiable. The module adheres to the standard DDR4 specifications, ensuring compatibility with a wide range of modern server motherboards that support DDR4 RDIMMs.
