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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 128 GB |
| Memory Technology | DDR5 |
| Product Voltage | 1.1 V |
| RAM Speed | 4800 MHz |
| RAM Standard | DDR5-4800/PC5-38400 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL40 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 128GB DDR5-4800 RDIMM is engineered for enterprise server platforms and is ideally suited for memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics, where massive capacity and data integrity are critical. The registered signal type stabilizes command/address lines across the quad-rank x4 organization, while built-in ECC guards against single-bit errors and the 1.1V operating voltage enhances energy efficiency in dense deployments.
1. ECC technology automatically detects and corrects single-bit memory errors, an essential safeguard for financial transactions or database operations where even a single flipped bit could corrupt critical data.
2. Registered signal type buffers command and address lines, enabling stable operation across large memory populations in dense rack servers without signal degradation.
3. 128 GB capacity per module allows a single dual-socket server to host significantly more virtual machines, reducing hardware footprint while scaling cloud workloads.
4. DDR5 architecture doubles the burst length and improves power management, delivering higher sustained bandwidth for real-time analytics under concurrent user loads.
5. Quad Rank x4 configuration interleaves multiple ranks to maximize page-hit rates, keeping heavily consolidated containers responsive even when memory access patterns are chaotic.
In modern data centers, memory integrity and density directly dictate business continuity. The HMCT04MEERA137N is an enterprise-class DDR5 RDIMM, and its four defining characteristics—a massive 128GB capacity, ECC error correction, registered signaling, and a quad-rank x4 architecture—translate into tangible reliability for mission-critical workloads. In a virtualized cluster, a single 128GB stick maximizes memory per channel, reducing module count and improving stability. The registered clock driver regenerates signals, ensuring stable operation across fully populated servers even under heavy load. Meanwhile, ECC actively corrects single-bit errors caused by cosmic radiation, a non-negotiable safeguard for financial databases where a flipped bit could corrupt a transaction. For in-memory databases like SAP HANA or Redis, the quad-rank design leverages interleaving to boost bandwidth, delivering lower effective latency for real-time analytics. This module means you can consolidate virtual machines, prevent silent data corruption, and accelerate data-intensive applications—all while maintaining 1.1V power efficiency.
General Virtualization
For general virtualization hosts running multiple VMs, 128 GB RDIMMs enable high consolidation ratios with minimal DIMM slot consumption. A dual-socket server with 16 memory slots can reach 2 TB of total memory using just sixteen of these modules, leaving ample room for scaling. Start with one DIMM per memory channel (1DPC) to balance capacity and 4800 MT/s bandwidth, then add identical modules in matched sets for seamless VM growth.
In-Memory Database
In-memory databases such as SAP HANA or Redis demand both large capacity and data integrity. Quad-rank 128 GB RDIMMs with ECC are ideal for building dense, reliable memory pools. Populate all channels symmetrically—typically one or two DIMMs per channel—to sustain the 4800 MHz speed while providing terabyte-scale datasets fully in RAM. This configuration minimizes latency and eliminates costly storage I/O bottlenecks for real-time analytics.
High-Performance Computing
HPC workloads thrive on memory bandwidth, so balanced population across all channels is critical. Use one 128 GB DIMM per channel in a fully populated 8-channel platform to achieve both high per-node capacity (1 TB) and maximum aggregate bandwidth. Paired with registered ECC signaling, this setup supports memory-intensive simulations and large-scale modeling while protecting against data corruption during multi-day compute runs.
Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE DL380 Gen11, Lenovo SR650 V3, Supermicro X13 and more.
Q: Can I mix this HMCT04MEERA137N with other memory modules of different brands or speeds?
A: Mixing different brands or speeds of Registered ECC DDR5 is not recommended. It may cause system instability or failure to POST. Always populate with identical Hynix DDR5-4800 RDIMMs for validated server reliability.
Q: Is this memory compatible with my system?
A: This 128GB DDR5-4800 RDIMM is designed for Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC 9004 series platforms. Verify your server board supports Registered ECC DDR5 and a 4800MT/s speed grade.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard's population guide. Typically, populate the farthest slot per channel first, then balance across all memory channels. Symmetrical loading maximizes bandwidth and ensures proper interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise-grade RDIMM, it adheres strictly to JEDEC DDR5-4800 standards at 1.1V. No XMP or overclocking is supported; it is engineered for deterministic stability in dense server deployments.
Q: What warranty and typical failure rate can I expect?
A: This Hynix module includes a one-year warranty. Enterprise DDR5 RDIMMs exhibit very low annualized failure rates, typically under 0.5%, delivering exceptional long-term reliability under 24/7 operation within specified environmental conditions.