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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 128 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 |
| Rank | Octal Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 128GB DDR4-2666 registered ECC module is engineered for enterprise servers and memory-intensive workloads such as virtualization and in-memory databases, where registered signal buffering and ECC error correction together deliver the data integrity and stability required at high capacities. The octal-rank x4 configuration maximizes DIMM density per channel, enabling massive scale-up memory footprints without sacrificing signal quality across 288-pin interfaces.
1. Registered signal type buffers command and address lines, enabling stable operation across densely populated server motherboards and ensuring consistent data integrity in large-scale virtualization clusters.
2. ECC memory proactively detects and corrects single-bit errors, protecting critical enterprise workloads from silent data corruption that could compromise financial transactions or database accuracy.
3. 128 GB capacity per module maximizes memory density per channel, allowing data centers to run more virtual machines per physical host without sacrificing performance headroom.
4. DDR4 technology delivers superior bandwidth at lower power compared to previous generations, improving throughput for in-memory analytics while reducing overall server energy costs.
5. DDR4-2666 speed provides reliable, standardized throughput that matches mainstream enterprise processor capabilities, striking an optimal balance between performance and memory controller stability.
The Micron MTA144ASQ16G72PSZ-2S6E1 is a server-class DDR4 RDIMM, purpose-built for data centers where integrity and uptime define business continuity. Its 128 GB capacity, achieved through an octal-rank x4 design, directly addresses the memory density crunch in virtualized clusters. When a hypervisor consolidates dozens of VMs, this single DIMM lets you provision larger footprints without sacrificing performance—critical for scaling VMware or KVM farms efficiently. The registered signal architecture buffers command and address lines, stabilizing the memory bus so the system remains rock-steady even when all eight ranks are under concurrent load. ECC error correction then acts as your last line of defense, preventing single-bit upsets from corrupting transactional databases or cached user sessions in Redis and Memcached. That silent bit-flip might only flip a single flag, but in a financial database it can cascade into a costly reconciliation nightmare. With DDR4-2666 speed and CL19 latency, the module strikes a balance between responsive throughput and power efficiency at 1.2 V, helping restrain thermal load in dense 1U nodes. Whether you are scaling a SaaS backend or accelerating an in-memory analytics tier, this RDIMM turns memory from a potential vulnerable surface into a reliable performance pillar.
Server Memory Identified
This 128GB DDR4-2666 RDIMM with ECC and Registered signaling is designed for enterprise servers. Its octal-rank x4 configuration and CL19 latency are typical for high-density, reliable server deployments. Capacity planning must align with the workload’s need for error correction and large addressable memory.
General Virtualization
For dense VM consolidation, this module allows exceptional VM density per host. Deploy two or four modules (256GB–512GB total) across memory channels to maximize NUMA balancing and avoid resource contention. Registered ECC ensures stability for multi-tenant environments.
In-Memory Database
In-memory databases demand both capacity and data integrity. Populate all memory channels with identical 128GB RDIMMs, scaling to 1TB or more, to hold entire datasets in RAM. ECC protection is non-negotiable for preventing silent data corruption during high-speed transactions.
High Performance Computing (HPC)
HPC workloads benefit from bandwidth-sensitive, large-heap configurations. Install one DIMM per channel (1DPC) for optimal speed, using six or eight modules to balance capacity and memory bandwidth. Octal-rank modules may reduce operating frequency, so verify platform compatibility to maintain throughput.
Rigorously tested for seamless compatibility with DDR4 servers, including Dell PowerEdge R750, HPE ProLiant DL380 Gen10, and Lenovo ThinkSystem SR650.
Q: Can I mix this MTA144ASQ16G72PSZ-2S6E1 with other memory modules of different brands or speeds?
A: We strongly advise against mixing brands or speeds in server platforms. For guaranteed stability and signal integrity, all installed RDIMMs should be identical Micron modules with matching rank, CAS, and 2666 MT/s specs.
Q: Is this memory compatible with my system?
A: This 128GB DDR4-2666 ECC RDIMM is designed for Intel Xeon Scalable and AMD EPYC platforms. Please verify your server board or OEM system supports registered DIMMs and 4Rx4 octal-rank configurations before ordering.
Q: What is the recommended DIMM population order for optimal performance?
A: For an octal-rank x4 RDIMM, populate memory channels per your server manual, typically one DIMM per channel first. Balance population across processors to maximize interleaving and avoid performance penalties from mixed ranks.
Q: Does this module support overclocking or XMP profiles?
A: No. This is an enterprise server RDIMM running strictly at JEDEC DDR4-2666 (PC4-21300) with CL19 latency. It does not support overclocking, XMP profiles, or any non-standard frequency adjustments.
Q: What warranty and typical failure rate can I expect?
A: This Micron module includes a 1-year warranty. In production server environments, it delivers an extremely low annualized failure rate (AFR) typical of Micron’s rigorous testing, ensuring data center reliability.