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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2400MHz |
| RAM Standard | DDR4-2400/PC4-19200 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL17 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Designed for server platforms, this 64GB DDR4-2400 Registered ECC RDIMM excels in virtualization, in-memory databases, and data-critical enterprise workloads demanding uncompromising data integrity. Its quad-rank x4 architecture and registered signal path allow dense memory configurations with improved channel stability, while the integrated ECC and CL17 timing ensure robust error correction at a low 1.2V operating voltage.
1. A 64GB capacity per module maximizes virtual machine density, allowing data centers to consolidate more workloads per server and reduce total cost of ownership.
2. ECC protection corrects single-bit errors in real time, preventing silent data corruption in mission-critical databases and financial transactions.
3. Registered signal buffering stabilizes high-capacity memory configurations by reducing electrical load on the memory controller, essential for maintaining uptime in multi-DIMM server deployments.
4. Quad Rank x4 organization keeps memory channels deeply saturated, delivering consistent bandwidth under the heavy, simultaneous access patterns of virtualized environments.
5. 2400MHz memory speed provides sufficient throughput for memory-intensive enterprise applications, balancing performance with power efficiency across dense rack infrastructures.
The Samsung M393A8K40B21-CTC0Y is a 64GB DDR4 Registered ECC module built for the relentless demands of modern servers. Its most vital asset is error-correcting code; in a dense virtualization cluster, an uncorrected bit flip can silently corrupt a database record or crash a critical tenant, but ECC detects and fixes this, preserving business continuity. The Registered buffer strengthens signal integrity, allowing you to fill all memory channels without stability loss—crucial when deploying a massive in-memory analytics platform where every gigabyte matters. The Quad Rank x4 design increases bank interleaving, delivering higher bandwidth and consistent low latency under heavy concurrent loads from dozens of virtual machines. Finally, the 1.2V operating voltage significantly reduces thermal stress and energy bills across a hyperscale data center. Combined with the 2400MHz speed and CL17, these features transform raw capacity into a reliable, cost-efficient engine for virtualized workloads and real-time databases.
General Virtualization
This 64GB DDR4-2400 RDIMM is ideal for dense virtualization hosts running multiple VMs. For a dual-socket server, populate an even number of modules (e.g., four 64GB sticks for 256GB total) across balanced memory channels to maximize available capacity without sacrificing NUMA locality. Avoid mixing ranks or capacities on the same channel to prevent performance penalties under sustained load.
In-Memory Database
In-memory databases like Redis or SAP HANA demand both capacity and low latency, making these registered 64GB DIMMs a strategic choice. Configure a minimum of 512GB across identical Quad Rank RDIMMs to keep the entire working set in RAM, and leverage the ECC protection to prevent silent data corruption during high-throughput transactions. Distribute modules equally across all memory controllers to maintain linear bandwidth scaling.
High-Performance Computing
HPC workloads thrive on maximum bandwidth, so populate one DIMM per channel with these CL17 Quad Rank modules to achieve the highest sustainable frequency without dropping to a lower speed grade. In a typical dual-processor node, install eight 64GB RDIMMs for 512GB total, ensuring you select identical part numbers to guarantee uniform rank and timing behavior during tightly coupled parallel jobs.
Rigorously tested, server-validated RDIMM for Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A8K40B21-CTC0Y with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands or speeds is strongly discouraged in server environments. Mismatched ranks, timings, or voltages often cause POST failures and stability issues. Always use identical M393A8K40B21-CTC0Y modules for validated reliability.
Q: Is this memory compatible with my system?
A: This DDR4-2400 Registered ECC DIMM is compatible with Intel Xeon E5-2600 v3/v4 and select AMD EPYC platforms that support Quad Rank x4 RDIMMs at 1.2V. Verify your motherboard's qualified vendor list; speeds may downclock to match the CPU's native support.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server board’s memory population guide. Generally, install Quad Rank RDIMMs starting with the farthest slot from the CPU per channel, balancing across all memory controllers. This ensures maximum bandwidth and avoids ranks per channel limits.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise Registered ECC DIMM, this module adheres to JEDEC DDR4-2400 standards with fixed CL17 timings. Overclocking and XMP are not supported, prioritizing data integrity and 24/7 operation stability over peak frequency.
Q: What warranty and typical failure rate can I expect?
A: This product includes a 1-year warranty. Enterprise-class DDR4 RDIMMs like this typically exhibit an annualized failure rate (AFR) well below 0.5%, reflecting rigorous testing and robust construction for mission-critical server deployments.