General

Engineer's Note

This 32GB DDR4-2133 Registered ECC memory module (RDIMM, Quad Rank x4) is engineered specifically for server platforms, making it exceptionally suited for virtualization clusters, in-memory databases, and mission-critical workloads where data integrity and uptime are paramount. Its Registered signal topology paired with ECC error correction ensures robust signal integrity and automatic single-bit error remediation in high-density memory configurations, enabling stable operation under sustained heavy loads.

Technical Specs & Insights

1. Registered signal type stabilizes signal integrity across fully loaded memory channels, enabling large-scale server deployments without compromise on uptime.
2. ECC protection continuously detects and corrects single-bit errors, preserving data accuracy in mission-critical database and financial transaction workloads.
3. Quad Rank x4 organization saturates memory channels efficiently, boosting throughput for dense virtualization and containerized environments.
4. 32GB capacity per module increases memory density per server node, allowing more virtual machines or in-memory datasets to coexist without physical expansion.
5. 2133MHz speed delivers consistent, validated bandwidth that sustains predictable performance across concurrent enterprise application threads under sustained load.

Why These Specs Matter

The M386A4G40DB0-CPB is a 32GB DDR4-2133 registered ECC RDIMM, purpose-built for server workloads. In dense virtualization clusters, its ECC engine silently corrects single-bit errors in real time, shielding your VMs from the data corruption and system crashes that unbuffered, non-ECC memory can cause. The registered interface buffers control signals, so you can populate all memory channels with multiple quad-rank DIMMs without signal degradation—essential for scaling up to terabytes of RAM. That quad-rank x4 organization further interleaves banks to boost bandwidth, directly accelerating in-memory databases like SAP HANA where every nanosecond counts during high-frequency transactions. Meanwhile, the 1.2V DDR4 design slashes power consumption per DIMM, reducing both cooling burdens and energy bills across your server farm. Clocked at 2133MHz with a CAS latency of 15, this module balances speed and latency, ensuring consistent response times under heavy loads. It is the silent enabler of 24/7 reliability.

Endurance & Reliability

General Virtualization
This 32GB DDR4-2133 registered ECC module is ideal for dense virtualization hosts. For a typical hypervisor running 20–30 light VMs, populate six to eight identical DIMMs across all memory channels to reach 192–256 GB, ensuring balanced NUMA access and reliable error correction under constant load.

In-Memory Database
Low latency and data integrity are paramount for in-memory databases like Redis or SAP HANA. Deploy at least eight of these quad-rank RDIMMs per socket for 256 GB, populating all channels symmetrically. The ECC and registered signaling prevent silent data corruption during the high-throughput, latency-sensitive operations common with large caching and real-time analytics.

High-Performance Computing
HPC workloads demand maximum bandwidth and reliability. Install one DIMM per channel across all available channels—typically eight or twelve modules per node—to exploit the full memory interleaving. The 2133 MT/s speed combined with ECC ensures stable, error-resilient performance for tightly coupled parallel simulations, large-scale modeling, and scientific computing tasks where memory errors cannot be tolerated.

Verified Compatibility

Rigorously validated server memory for Dell PowerEdge R730, HPE DL380 Gen9, Lenovo x3650 M5.

FAQ