Description
Samsung 16GB DDR4-2666 ECC RDIMM Server RAM M393A2K40CB2-CTD. Reliable, high-speed registered DIMM memory for enterprise servers and workstations.
Product Features
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16GB DDR4 Registered ECC RAM designed for enterprise servers
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2666 MHz high speed for fast and stable performance
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Error-Correcting Code (ECC) for maximum reliability
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Registered (buffered) architecture for stability in multi-DIMM server systems
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JEDEC-standard compliance ensuring compatibility across platforms
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Low 1.2V power consumption for efficient energy usage
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Samsung quality assurance with proven reliability in mission-critical environments
General Product Information
The Samsung 16GB DDR4-2666 ECC Registered RDIMM (M393A2K40CB2-CTD) is built to deliver enterprise-grade memory performance, stability, and reliability for today’s most demanding servers and workstations.
With 2666 MHz data transfer speed, this server memory ensures smooth multitasking, virtualization, and high-performance workloads. Its Error-Correcting Code (ECC) technology detects and corrects memory errors in real-time, protecting sensitive data and mission-critical applications from corruption.
The registered (buffered) DIMM design enhances signal integrity, enabling greater scalability and reliable operation in high-density server environments. Operating at 1.2V, it balances speed with energy efficiency, reducing overall power consumption in data centers.
As one of the most trusted memory brands worldwide, Samsung server RAM is JEDEC-compliant and rigorously tested to meet the highest standards of durability and performance, making it the ideal choice for IT professionals, data centers, and enterprise workloads.
Technical Specifications Table
| Feature | Details |
|---|---|
| Brand | Samsung |
| Model | M393A2K40CB2-CTD |
| Capacity | 16GB |
| Type | DDR4 RDIMM (Registered DIMM) |
| Speed | 2666 MHz (PC4-2666V) |
| Form Factor | 288-Pin DIMM |
| ECC Support | Yes |
| Registered | Yes (Buffered) |
| Rank | 2Rx4 |
| Voltage | 1.2V |
| Compliance | JEDEC, CE, RoHS |
| Use Case | Servers, Enterprise Workstations |
| Warranty | Limited Lifetime (varies by vendor) |
Compatible Products
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Server Platforms: Intel Xeon Scalable (Silver, Gold, Platinum) & AMD EPYC processors
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Motherboards: HPE ProLiant, Dell PowerEdge, Lenovo Think System, Super micro server boards supporting DDR4 ECC RDIMM
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Operating Systems: Windows Server, Linux distributions, VMware ESXi
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Applications: Database servers, virtualization environments, cloud computing, storage nodes
Ideal Use Cases
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Enterprise Servers – high-performance computing & virtualization
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Data Centers – scalable, reliable infrastructure memory
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Workstations – CAD, 3D rendering, and simulation workloads
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Mission-critical applications – healthcare, finance, and government IT systems
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Virtualization & Cloud Platforms – VMware, Hyper-V, Kubernetes clusters
Comparison Angle
Compared to unbuffered and non-ECC memory, the Samsung DDR4-2666 ECC Registered module provides:
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Superior data integrity with ECC error correction
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Enhanced scalability for multi-DIMM configurations
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Improved stability in enterprise workloads
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Optimized power efficiency at 1.2V operation
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Proven reliability with Samsung’s enterprise-grade validation
Cross-Sell / Upsell Suggestions
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Additional Samsung DDR4 ECC REG modules (16GB, 32GB, 64GB)
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Enterprise SSDs (Samsung PM883, Intel DC Series)
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Compatible Xeon or EPYC processors
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Server motherboards with DDR4 ECC REG support
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Rackmount server systems and power supplies