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Samsung M393AAG40M3B-CYF 128GB DDR4-2933MHz RDIMM 4Rx4 CL21 Memory
- Capacity: 128GB
- Memory Type: DDR4 SDRAM
- Form Factor: RDIMM (Registered DIMM)
- Speed: 2933MHz (PC4-23466)
- CAS Latency: CL21
- Rank: 4Rx4 (Quad Rank x4)
- Voltage: 1.2V
- ECC: Yes (Error-Correcting Code)
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Product Overview
The Samsung M393AAG40M3B-CYF is a high-capacity 128GB DDR4 RDIMM memory module, designed for the most demanding server and data center applications. It operates at 2933MHz with a CL21 latency, providing exceptional bandwidth and performance.
Technical Information
| Capacity | 128GB |
| Memory Type | DDR4 SDRAM |
| Form Factor | RDIMM |
| Speed | 2933MHz |
Additional Specifications
| CAS Latency | CL21 |
| Rank | 4Rx4 |
| Voltage | 1.2V |
| ECC | Yes |
Product Description
This 128GB DDR4 RDIMM, identified by the SKU M393AAG40M3B-CYF, represents a pinnacle of memory capacity for enterprise servers. Its 2933MHz speed and CL21 latency are optimized for environments requiring massive data throughput, such as large-scale virtualization, in-memory databases, and complex scientific simulations. The 4Rx4 configuration indicates a quad-rank design with x4 data width per rank. This advanced configuration allows for higher memory density and improved performance by distributing the memory load across more ranks, which is particularly beneficial in high-end server platforms designed to support maximum memory configurations. As a registered DIMM (RDIMM), it features onboard registers to buffer address and command signals, reducing the electrical load on the memory controller. This enables systems to support a greater number of memory modules and achieve higher total memory capacities. The inclusion of ECC ensures data integrity and system reliability, making it a critical component for mission-critical applications.



