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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Standard | DDR4-2666/PC4-21300 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL19 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR4-2666 Registered ECC RDIMM module is purpose-built for server platforms running memory-intensive workloads such as virtualization and in-memory databases, where its hardware-level error correction and registered signal buffering guarantee data integrity under sustained multi-rank population. The Registered signal type enhances signal stability across high-density memory channels, making it an ideal choice for scalable dual- or quad-socket systems that cannot tolerate downtime from silent data corruption.
1. 64GB per module doubles the memory footprint in the same footprint, allowing virtualization hosts to pack more VMs and large in-memory databases without sacrificing critical RAM slots.
2. 21.3 GB/s peak bandwidth per channel keeps multiple CPU cores fed with data simultaneously, preventing I/O stalls during heavy analytics or concurrent user requests.
3. ECC protection silently corrects single-bit memory errors in real time, preserving data integrity for financial transactions and long-running scientific computations.
4. Registered buffering stabilizes signal integrity across fully loaded memory channels, enabling reliable 2TB+ configurations in multi-socket servers under constant load.
5. 1.2V operation reduces overall power draw and waste heat, directly improving energy efficiency and cooling overhead in dense rack-scale deployments.
The Micron MTA72ASS8G72LZ is a server-grade registered DIMM specifically built for enterprise platforms, combining 64GB capacity, DDR4-2666 speed, ECC, and a registered signal architecture to address the unforgiving demands of data center workloads. In a virtualized cluster hosting dozens of VMs, the registered buffer redistributes command and address signals, stabilizing high-density memory configurations across all channels and preventing intermittent crashes that would otherwise disrupt multi-tenant services and erode SLA commitments. Meanwhile, ECC constantly corrects single-bit errors caused by background radiation—an absolute necessity for in-memory databases like SAP HANA, where a flipped bit could silently corrupt a financial transaction or an analytics result without any warning. The 64GB per DIMM capacity lets you maximize memory footprint per server without sacrificing speed, enabling more VMs per host and scaling database caches seamlessly, while the 2666MT/s bandwidth delivers 21.3GB/s throughput for concurrent data access and real-time query processing. At 1.2V, the module also reduces power draw across your fleet. This is not just a specification sheet; it directly translates into uncompromising data integrity, higher consolidation ratios, and a measurably lower total cost of ownership for your infrastructure.
General Virtualization
For a typical hypervisor hosting mixed virtual machines, this 64 GB RDIMM provides an excellent balance of density and cost. Populating six to eight identical 64 GB modules across the server’s memory channels yields 384–512 GB, comfortably supporting dozens of lightweight VMs. Distribute modules evenly per CPU socket to maintain balanced interleaving and minimize NUMA latency.
In-Memory Database
In-memory databases like SAP HANA or Redis demand both capacity and reliability, making ECC Registered memory essential. A single 64 GB RDIMM lets you scale to 256 GB by installing four modules in a quad-channel configuration for smaller dataset caching. For production analytics, populate all available slots with identical 64 GB DIMMs to reach 512 GB–1 TB, ensuring all memory channels are occupied for maximum throughput and data protection.
High-Performance Computing
HPC workloads such as computational fluid dynamics or molecular modeling require high bandwidth and error correction under sustained load. Install six or eight of these 64 GB RDIMMs in a balanced multi-channel layout to provide 384–512 GB per node while exploiting the full memory interleaving potential. The CL19 latency at 2666 MT/s offers stable, predictable performance, and the registered buffer maintains signal integrity across the numerous ranks typical of dense HPC clusters.
Rigorously validated server memory. Compatible systems: Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V2.
Q: Can I mix this MTA72ASS8G72LZ with other memory modules of different brands or speeds?
A: We strongly advise against mixing this registered ECC module with different brands or speeds. Mismatched DIMMs can cause signal integrity issues, disable ECC protection, and compromise server stability.
Q: Is this memory compatible with my server? Which Intel or AMD platforms are supported?
A: This DDR4-2666 ECC RDIMM works with platforms supporting registered DDR4 memory, such as Intel Xeon Scalable (Purley/Whitley) and AMD EPYC 7000/7002/7003 series. Verify your motherboard's qualified vendor list.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate identical DIMMs per channel starting with the farthest slot from the CPU. Follow the server board's memory population guide to balance channels and enable all memory controllers evenly.
Q: Does this module support overclocking or XMP profiles?
A: No, this is an enterprise-class registered ECC module running at JEDEC standard DDR4-2666. It does not support overclocking or XMP profiles, as stability and data integrity are paramount in server environments.
Q: What warranty and typical failure rate can I expect?
A: This Micron RDIMM comes with a one-year warranty. Enterprise-grade memory exhibits extremely low failure rates under specified conditions, typically measuring in single-digit FIT (Failures In Time) for reliable 24/7 operation.