HPE DDR4 16GB 3200 MT/s RDIMM

Brand: HPE | Category: Memory (RAM)

SKU: 869079-B21 | Part #: 869079-B21 | MPN: 869079-B21

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Built for mission-critical workloads that cannot tolerate memory errors or unpredictable latency, the HPE DDR4 16GB 3200 MT/s RDIMM (part number 869079-B21) pairs aggressive timing characteristics with enterprise-grade reliability. This module operates at CL22 with a low operating voltage of 1.2V, a combination that appeals directly to infrastructure teams running high-frequency trading platforms, in-memory databases, and real-time analytics clusters. When microseconds matter—whether you're managing sub-100μs latency SLAs or executing millions of transactions per second—the voltage-to-latency ratio on this HPE part becomes a critical selection factor. The 869079-B21 is registered memory with full ECC support, meaning every read and write passes through error-correction logic before reaching your application, eliminating silent data corruption in environments where a single bit flip can invalidate hours of computation.

The HPE DDR4 16GB module uses a single-rank x4 organization across 288 pins, delivering 64-bit data width (72-bit with ECC parity included). At 3200 MT/s transfer rate, this translates to approximately 25.6 GB/s of theoretical bandwidth per module—sufficient for memory-bound workloads but also conservative enough to run at 1.2V without thermal stress or signal integrity issues. HPE classifies this as SmartMemory-qualified, meaning it has been validated and tuned for ProLiant server microcode, firmware, and BIOS profiles. Storage architects and enterprise infrastructure teams purchasing capacity for Gen10 Plus and select Gen10 ProLiant servers (DL, ML, and BL series) rely on SmartMemory certification because it removes guesswork around DIMM selection and guarantees compatibility with HPE's memory optimization algorithms. The operating temperature window of 0°C to 85°C is wide enough for most data-centre environments, though administrators in high-density racks should monitor ambient conditions near the upper end of that range.

From a procurement perspective, infrastructure engineers and network architects favour the 869079-B21 because it bridges the gap between cost-per-gigabyte and performance-per-watt. This is not entry-level memory suitable for general virtualization; it is enterprise RDIMM designed for workloads where memory bandwidth and reliability directly influence revenue. Financial institutions upgrading trading platforms, telecommunications operators deploying real-time packet inspection engines, and AI research labs training large language models on distributed in-memory frameworks all standardize on HPE DDR4 RDIMM kits in this speed grade. The registered DIMM architecture itself (rather than unbuffered UDIMM) reduces electrical load on the server's memory bus, allowing higher module counts per socket without speed degradation. When you populate eight, sixteen, or even thirty-two DIMMs per server, this buffering becomes essential for signal stability and timing closure.

System administrators integrating this part into ProLiant infrastructure should be aware that HPE's SmartMemory technology extends beyond passive certification. The 869079-B21 works in tandem with ProLiant's adaptive memory features—such as memory mirroring, NUMA awareness, and predictive failure analysis—to deliver uptime margins that commodity memory cannot match. The CL22 timing, combined with 3200 MT/s speed and 1.2V stability, has been stress-tested across HPE's validation matrix, meaning boot-to-production deployment typically requires only BIOS version alignment and no additional tuning. For large-scale deployments, this out-of-the-box reliability reduces time-to-value and eliminates the memory-related support tickets that plague mixed-vendor environments. Sysadmins managing multiple server generations within the same facility appreciate that HPE maintains backward and forward compatibility for RDIMM modules across consecutive ProLiant generations, protecting capital investment as hardware refreshes occur.

The part number 869079-B21 appears across HPE's official documentation, compatibility matrices, and spare-parts catalogs, making procurement straightforward for enterprises with existing HPE relationships. Omnixon Global stocks HPE DDR4 RDIMM inventory across multiple speed grades and capacities, serving data-centre operators, systems integrators, and AI infrastructure teams throughout the GCC, Asia, and Europe. Whether you are scaling a regional cloud deployment, refreshing memory in legacy ProLiant fleets, or building out AI lab infrastructure that demands ECC protection and low-latency performance, the 869079-B21 represents a proven, qualification-backed solution. Contact Omnixon Global with your memory requirements; we handle RFQs, technical specification verification, and logistics coordination for enterprise orders across our distribution network.

Performance Specifications & Platform Compatibility

• Memory capacity: 16 GB DDR4 module with single-rank x4 organization and 288-pin RDIMM form factor
• Transfer rate and timing: 3200 MT/s (PC4-3200AA-R speed grade) with CL22 latency and 1.2V operating voltage for low-power, high-frequency workloads
• Error correction and data integrity: Full ECC support with 72-bit data width (64-bit payload plus 8-bit ECC), registered DIMM buffering to reduce memory bus stress on multi-DIMM configurations
• Server compatibility: HPE ProLiant Gen10 Plus (DL, ML, BL series) and select Gen10 models, with HPE SmartMemory qualification for BIOS and firmware optimization
• Operating environment: Temperature range 0°C to 85°C, suitable for standard and high-density data-centre deployments with proper thermal management
• Manufacturer part number: HPE 869079-B21, with full traceability through HPE's spare-parts and compatibility verification systems