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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR5 |
| RAM Speed | 5600 MHz |
| RAM Standard | DDR5-5600/PC5-44800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL46 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Ideal for virtualization and in-memory database workloads, this 64GB DDR5-5600 Registered DIMM delivers robust data integrity with ECC and enhanced signal stability through its registered architecture. Its dual-rank x4 configuration optimizes bandwidth utilization and interleaving on multi-channel server platforms, ensuring high throughput and reliability for mission-critical enterprise environments.
1. A single 64GB module allows a dual-socket server to reach massive memory capacity with fewer DIMM slots, directly supporting higher virtual machine density and lowering per‑VM infrastructure cost.
2. DDR5 technology doubles the bank groups and enables longer burst lengths, supplying the immense parallelism needed to feed tens of CPU cores during concurrent AI training and in‑memory analytics jobs.
3. The 5600MT/s data rate removes the memory bandwidth ceiling, accelerating real‑time fraud detection and high‑frequency trading platforms where every microsecond of latency matters.
4. Hardware ECC continuously detects and corrects memory errors, eliminating silent data corruption in 24/7 database operations and preserving transactional accuracy for mission‑critical ERP systems.
5. Dual Rank x4 organization interleaves accesses across two ranks per channel, keeping the memory bus fully saturated and maintaining consistent throughput under heavy multi‑tenant cloud workloads.
Designed for the modern data center, the Samsung M321R8GA0EB0-CWM is a 64GB DDR5-5600 RDIMM that directly addresses the critical pain points of server infrastructure. Its ECC technology is your frontline defense against silent data corruption. In a virtualized cluster hosting dozens of financial transaction databases, even a single undetected bit flip caused by cosmic radiation can cascade into calculation errors, audit failures, or costly downtime—ECC actively corrects these errors in real time, preserving data fidelity. The registered signal buffer overcomes the electrical loading limits of unbuffered memory, so you can populate all channels with high-density modules without sacrificing signal integrity. For an in-memory database like Redis or SAP HANA, the dual-rank x4 organization combined with 5600MT/s bandwidth feeds the CPU with parallelized data streams, slashing query latency under heavy concurrent user loads. And with 64GB on a single stick, you maximize capacity in dense 1U servers, leaving slots free for future scaling while confidently running both memory-hungry virtual machines and large caching tiers. This module translates directly to improved uptime, predictable performance, and a lower total cost of ownership.
This 64GB DDR5-5600 ECC Registered RDIMM is built for server platforms. The following guidelines map capacity planning to typical enterprise workloads.
General Virtualization
Balance core-to-memory ratios and future growth. In a dual-socket server with eight channels per CPU, populate one identical 64GB RDIMM per channel (16 modules total) to deliver 1TB of balanced memory. This provides ample headroom for dense VM consolidation while fully utilizing multi-channel bandwidth. A half-populated configuration (8 modules) offers a cost-effective starting point.
In-Memory Database
Maximize dataset residency and reliability. Begin with one 64GB DIMM per channel, then add a second DIMM per channel if workload demands it, accepting a moderate speed reduction under 2DPC for doubled capacity. Always use identical ECC Registered modules to maintain data integrity and seamless memory interleaving.
High-Performance Computing
Prioritize bandwidth by keeping a 1 DIMM-per-channel (1DPC) population. Equipping all sixteen channels across two sockets with 64GB RDIMMs provides 1TB of memory running at the full 5600MT/s speed. This balanced configuration sustains high throughput for bandwidth-bound simulations, modeling, and parallel computation.
Strictly tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R8GA0EB0-CWM with other memory modules of different brands or speeds?
A: Mixing is not recommended. Registered ECC RDIMMs require identical ranks, timings, and organization for reliable signal integrity. Mismatched speeds force the server to downclock, potentially causing POST or stability issues.
Q: Is this memory compatible with my system?
A: This 64GB DDR5-5600 RDIMM is designed for server platforms supporting Registered ECC memory, such as AMD EPYC 9004/8004 Series or Intel Xeon Scalable 4th/5th Gen. Verify your CPU and motherboard support PC5-44800 RDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: For Dual Rank x4 modules, populate 1 DIMM per channel first, following your server’s manual. Balance identical RDIMMs across memory channels and processor sockets to maximize interleaving and prevent bandwidth penalties.
Q: Does this module support overclocking or XMP profiles?
A: No. This JEDEC-compliant DDR5-5600 RDIMM with CL46 does not support XMP or overclocking. Server platforms strictly adhere to standard speeds for stability and data integrity under ECC operation.
Q: What warranty and typical failure rate can I expect?
A: It carries a 1-year warranty. Enterprise RDIMMs using premium-grade ICs typically have an annualized failure rate below 0.3% under spec-compliant thermal environments. We replace defective modules promptly per warranty terms.