General

Engineer's Note

This 64 GB DDR4-2666 Registered ECC RDIMM, engineered with a quad-rank x4 configuration and CL19 latency, is built for server platforms handling data-critical workloads like virtualization, large-scale memory databases, and enterprise applications. Its registered signal type stabilizes command and address signals across dense memory channels, while on-die ECC guards against single-bit errors to maintain unwavering data integrity under continuous operation.

Technical Specs & Insights

1. A dense capacity per module allows servers to host significantly more virtual machines per socket, consolidating workloads without sacrificing performance or memory headroom.
2. ECC protection continuously corrects single-bit errors and detects multi-bit faults, safeguarding transactional data integrity in financial, medical, and scientific computing.
3. The registered signal buffer stabilizes command and address lines across fully loaded channels, preserving signal quality in large-memory footprints essential for enterprise virtualization.
4. Quad Rank x4 organization packs extreme memory depth onto a single stick, enabling massive in-memory databases and high-density analytics to run under one hypervisor.
5. DDR4-2666 bandwidth provides a balanced throughput for modern multi-core Xeon processors, ensuring smooth data streaming during concurrent virtual machine and container operations.

Why These Specs Matter

In the data center, your memory choice defines the boundary between smooth operations and costly outages. This Micron 64GB DDR4-2666 RDIMM (MTA72ASS8G72LZ-2G6J2R) is a server-grade module engineered to deliver reliability and throughput where it matters most. In a dense virtualization cluster, the ECC function silently corrects single-bit errors caused by background radiation, preventing silent data corruption that could crash dozens of virtual machines and disrupt critical services. The registered buffer decouples the memory controller from the DRAM chips, stabilizing signal integrity when all 24 slots of a server are populated, so you can confidently run high-density VM hosts without memory-related instability. For in-memory databases like SAP HANA or Redis, the quad-rank x4 organization enables effective rank interleaving, boosting the sustained bandwidth needed to process millions of transactions with microsecond response times. Combined with a 64 GB capacity per stick and 1.2 V power efficiency, this module reduces DIMM count while maximizing throughput in rack-scale analytics. What you gain is not just capacity, but predictable performance that keeps virtualized workloads and real-time data engines always available.

Endurance & Reliability

General Virtualization
For dense virtualization hosts, this 64GB RDIMM is an ideal building block. Deploy six to eight modules in a dual-socket server to reach 384–512 GB, comfortably supporting 50+ moderate VMs. Populate all memory channels symmetrically (one DIMM per channel) to maximize bandwidth while leaving room for future expansion.

In-Memory Database
In-memory databases like SAP HANA or Redis demand large, reliable capacity and low latency. A 64GB quad-rank RDIMM allows you to pack 1 TB or more into a 16-slot server without sacrificing rank interleaving performance. Use identical modules across all channels and keep a hot spare kit on hand—ECC and registered buffering are critical to prevent silent data corruption under constant heavy write loads.

High-Performance Computing (HPC)
HPC workloads benefit from both capacity and balanced memory bandwidth. Install eight 64GB RDIMMs in a dual-socket node to achieve 512 GB, matching one DIMM per channel for optimal throughput on DDR4-2666. This configuration works well for large-scale fluid dynamics, climate simulation, or genomics where the working set often exceeds hundreds of gigabytes and checkpointing to disk must be minimized.

Verified Compatibility

Rigorously validated for Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and similar servers.

FAQ