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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 128 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2666MHz |
| 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 is a server-grade DDR4-2666 Registered ECC memory module, specifically engineered for enterprise platforms running memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics. Its octal-rank x4 organization enables 128 GB capacity on a single RDIMM, while the registered signal architecture and ECC ensure exceptional data integrity and signal stability in multi-DIMM configurations.
1. Massive memory capacity per module dramatically increases the memory footprint available for virtualized workloads, reducing the need for costly server sprawl.
2. Registered DIMM design buffers control signals, allowing stable population of all memory channels in dense rack servers and blade systems.
3. Integrated error correction ensures end-to-end data integrity, preventing silent data corruption in always-on database and analytics clusters.
4. The registered signal type minimizes electrical loading, which is critical for maintaining signal integrity across large memory arrays in multi-socket servers.
5. Octal rank architecture keeps the memory controller deeply pipelined, delivering sustained throughput for high-concurrency transaction processing.
The Micron MTA144ASQ16G72PSZ-2S6G1SG is a 128GB DDR4-2666 RDIMM engineered for enterprise servers where data integrity and uninterrupted operation are non-negotiable. Its ECC technology actively detects and corrects single-bit errors, shielding your in-memory databases from silent corruption that could crash financial transactions or analytics. Registered buffering stabilizes the command and address lines, allowing you to populate dense 128GB modules across all channels without signal degradation—essential for large-scale virtualization clusters running hundreds of VMs. The module’s octal-rank x4 organization enables rank interleaving, boosting effective bandwidth and reducing access latency under heavy loads, so an in-memory database like SAP HANA can process queries faster. With 128 GB capacity on a single stick, you maximize memory per server while minimizing power and failure points, ensuring your virtualized infrastructure can handle the most demanding workloads with confidence.
General Virtualization
For a DDR4-2666 Registered DIMM with ECC and 128 GB capacity, populate servers in matched sets to maximize memory bandwidth. In a dual-socket hypervisor hosting mixed VMs, install at least four modules per CPU to enable balanced interleaving, providing 512 GB total for moderate consolidation. Leverage the octal-rank design to achieve high density without sacrificing channel count, but verify platform rank limits to avoid clock speed reduction.
In-Memory Database
In-memory databases like SAP HANA or Redis demand low latency and absolute data integrity, making this 128 GB ECC RDIMM ideal. Deploy a symmetrical configuration—six or eight identical modules per node—to hit 768 GB or 1 TB targets while maintaining full memory channel population. The registered, octal-rank x4 organization allows massive capacity in a compact footprint, and the CL19 timing at 2666 MT/s delivers the consistent access speed critical for real-time analytics.
High-Performance Computing
HPC workloads benefit from both capacity and bandwidth. Populate all memory channels uniformly with this 128 GB module to sustain peak throughput in memory-bound simulations. A typical dual-socket cluster node can scale to 2 TB using 16 modules, supporting large datasets in computational fluid dynamics or genomic analysis. The ECC and registered signalling ensure reliability during multi-day compute runs where a single-bit error could invalidate results.
Rigorously tested, compatible with servers: Dell PowerEdge R740, HPE DL380 Gen10, Lenovo SR650, Supermicro X11 systems.
Q: Can I mix this MTA144ASQ16G72PSZ-2S6G1SG with other memory modules of different brands or speeds?
A: Mixing this RDIMM with different brands or speeds is strongly discouraged in servers. It often causes signal integrity issues, instability, and may force the memory controller to downclock all modules to the lowest common frequency, undermining performance.
Q: Is this memory compatible with my Intel or AMD server platform?
A: This 128GB DDR4-2666 ECC Registered DIMM is compatible with Intel Xeon Scalable and AMD EPYC platforms that support 2666 MT/s RDIMMs. Verify octal rank and 1.2V support in your server board's qualified vendor list for assured compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per memory channel, starting with the farthest slot from the CPU. For octal rank RDIMMs, one DIMM per channel is typical to maintain 2666 MT/s. Consult your server's population guide to avoid degraded speed or capacity imbalances.
Q: Does this module support overclocking or XMP profiles?
A: No. Server-grade ECC Registered memory is engineered for reliability and stability at JEDEC standard timings. It does not support overclocking or XMP profiles, as those features conflict with error correction and 24/7 enterprise operation requirements.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Annualized failure rate (AFR) for Micron server memory is generally well under 1% under specified conditions, reflecting high reliability. Premature failures are rare and typically covered by the warranty period.