General

Engineer's Note

Designed specifically for server environments, this Samsung M393A2K43DB3-CWE 16GB DDR4-3200 Registered ECC memory module delivers data integrity and system stability critical for virtualization, in-memory databases, and mission-critical workloads. Its dual-rank x8 architecture with CL22 latency enhances memory bandwidth through rank interleaving, while the registered signal type ensures stable operation in high-density multi-DIMM configurations.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors in real time, safeguarding transactional databases and in-memory caches against silent data corruption that would otherwise crash critical services.
2. Registered signal type buffers command and address lines, enabling a server to populate all DIMM slots without signal degradation and thus support massive memory footprints for dense virtualization hosts.
3. Dual Rank x8 organization interleaves accesses across two internal rank groups per channel, boosting effective bandwidth during concurrent VM workloads and reducing memory latency under mixed read/write traffic.
4. 16GB capacity per module hits the density sweet spot for scaling to hundreds of gigabytes in 24-slot servers, maximizing the number of medium-weight containers or VMs per node without wasting budget on overprovisioning.
5. 3200MT/s transfer rate delivers 25.6GB/s peak bandwidth per channel, accelerating in-memory analytics and large-page table walks in hypervisors that are bound by memory throughput.

Why These Specs Matter

When you're running a virtualized cluster or an in-memory database, memory errors aren't just an inconvenience—they're a direct threat to transactional integrity and uptime. The Samsung M393A2K43DB3-CWE, a 16GB DDR4-3200 Registered DIMM, is engineered precisely for these moments. Its ECC technology continuously detects and corrects single-bit errors, silently preventing data corruption that could otherwise crash a hypervisor or poison a financial record. The registered buffer stabilizes signal integrity across fully populated servers, so you can confidently scale to 24 or more DIMMs per node without sacrificing 3200 MT/s throughput—critical when your Redis or Memcached instance must serve millions of keys with sub-millisecond latency. Dual-rank x8 organization further amplifies bandwidth through interleaving, giving virtual machines a tangible responsiveness boost under heavy consolidation ratios. In a world where a single uncorrected error can cascade into a multi-node outage, this module translates directly into fewer silent data corruptions, higher VM density, and database query consistency you can rely on around the clock.

Endurance & Reliability

This 16GB DDR4-3200 ECC Registered RDIMM is server-class memory. The following capacity planning guidelines address three typical server workloads.

General Virtualization
Populate all memory channels symmetrically with identical 16GB RDIMMs to achieve NUMA-balanced access. In a dual-socket server with eight channels per socket, one DIMM per channel provides 128GB per socket—sufficient for dozens of virtual machines. Scaling to two DIMMs per channel doubles capacity to 256GB per socket but may slightly reduce memory speed.

In-Memory Database
Maximize capacity and reliability by fully populating channels. For large in-memory datasets, install two DIMMs per channel; 32 of these dual-rank RDIMMs deliver 512GB in a 16-channel dual-socket system. The dual-rank x8 design offers rank interleaving for improved latency, while ECC protects data integrity for databases like Redis and SAP HANA.

High-Performance Computing
Prioritize memory bandwidth by using a single DIMM per channel to maintain the full 3200 MT/s data rate. An 8-channel single-socket node equipped with eight 16GB RDIMMs yields 128GB of high-bandwidth memory. Always use identical dual-rank RDIMMs to avoid signal timing mismatches and ensure consistent performance across parallel HPC jobs.

Verified Compatibility

Rigorously tested server-grade memory. Compatible with: Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, Supermicro SYS-620P-TR.

FAQ