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The HPE P43331-B21 is a 64GB DDR5 SDRAM module designed for HPE ProLiant servers. With next-generation DDR5 technology, it delivers higher bandwidth, better power efficiency, and superior reliability compared to DDR4. This module ensures exceptional performance for virtualized workloads, databases, AI, and big data applications.
As a certified HPE option kit, the P43331-B21 undergoes rigorous validation for enterprise environments, guaranteeing compatibility, stability, and data integrity under 24/7 mission-critical workloads.
This DDR5 Server Memory provides scalable capacity, increased memory bandwidth (up to 4800 MT/s+), and reliability features such as ECC (Error-Correcting Code). It is engineered to minimize latency and optimize multi-threaded workload performance.
The P43331-B21 supports advanced DDR5 features including dual 32-bit subchannels for improved parallelism, on-die ECC for chip-level error correction, and optimized power delivery for reduced operating voltage. Perfect for dense virtualization, HPC, and cloud-scale datacenters.
The HPE P43331-B21 guarantees long-term reliability with full ECC support to detect and correct data corruption. Designed for sustained workloads in enterprise and datacenter deployments, it provides consistent performance and keeps applications running smoothly without compromise.
| Specification | Details |
|---|---|
| Part Number | P43331-B21 |
| Brand | HPE |
| Product Type | Server Memory Module |
| Capacity | 64GB |
| Memory Technology | DDR5 SDRAM |
| Form Factor | DIMM |
| ECC Support | Yes (Error-Correcting Code) |
| Bus Speed | 4800–5600 MT/s (varies by system) |
| Memory Rank | Varies by SKU (RDIMM/LRDIMM supported) |
| Voltage | 1.1V (DDR5 standard low voltage) |
| On-Die ECC | Yes, for chip-level correction |
| Subchannels | 2 × 32-bit subchannels |
| Compatibility | HPE ProLiant Gen11/Gen10+ servers |
| Reliability | Validated and tested by HPE |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC DDR5 standards |
| Application | Enterprise workloads, HPC, virtualization |
| Configuration | Registered / Load-Reduced depending SKU |
| Durability | Designed for 24/7 datacenter use |
| Warranty | Backed by HPE limited lifetime warranty |

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