815098-B21 HPE 1x16GB DDR4 RDIMM ECC RAM

High-Density DDR4 Registered ECC Server Memory Expansion with the 815098-B21

The 815098-B21 is an HPE 16GB DDR4-2666 Registered ECC RDIMM designed to expand memory capacity and stability in HPE ProLiant DDR4 server platforms, supporting CPU generations that rely on DDR4 IMCs for predictable latency and throughput. As a registered module, it reduces electrical loading on the memory bus to help sustain performance as DIMM populations increase, which is critical for multi-socket configurations and dense virtualization nodes.

Built to JEDEC DDR4-2666 (PC4-21300R), the 815098-B21 supports enterprise memory architectures where ECC and registered buffering protect data integrity under continuous load. The 72-bit data path and x4 DRAM organization enhance error detection and correction behavior, while the 288-pin, 1.2V design aligns with data center power and thermals planning. The 815098-B21 integrates cleanly with PCIe-based expansion and modern storage stacks by reducing memory bottlenecks for VM consolidation, database caching, and application tier concurrency, enabling more consistent CPU utilization across mixed workloads.

Why Choose the 815098-B21?

The 815098-B21 delivers a balanced density-to-stability profile for scaling HPE ProLiant nodes without compromising reliability, making it a practical building block for standardized fleet upgrades. By using ECC Registered memory, the 815098-B21 supports predictable operation at higher DIMM counts, improving scalability for incremental capacity growth and controlled lifecycle expansions.

HPE engineers memory options such as the 815098-B21 for platform-level compatibility, qualification discipline, and long-run operational consistency. This approach supports enterprise change control, reduces integration risk, and aligns with modern data center requirements for serviceability and validated component interoperability.

Key Applications:

• Virtualization hosts and VM consolidation
• General-purpose compute and mid-tier services
• Database and in-memory caching expansion
• Application servers requiring ECC RDIMM

At Happyware - Server Hardware you benefit from Non-Binding Offers tailored to your ProLiant configuration and rollout plan, and you can secure a Bulk Order Discount when standardizing the 815098-B21 across larger server populations.