P73131-B21 HPE 32GB 4800MT/s PC5-38400 Cl42 ECC DDR5 Memory.

HPE P73131-B21 32GB DDR5 Memory Module Overview

The HPE P73131-B21 32GB 4800MT/s PC5-38400 CL42 ECC DDR5 memory is a cutting-edge server memory module designed to meet the evolving needs of enterprise IT environments. Engineered by Hewlett Packard Enterprise (HPE), this factory-sealed, brand-new memory module comes in its original packaging and includes a generous 3-year warranty. It represents the latest advancements in memory performance, reliability, and efficiency, specifically tailored for enterprise-grade servers and mission-critical applications. This DDR5 Registered DIMM (RDIMM) delivers blistering data transfer rates, lower power consumption, and advanced error correction capabilities that maximize uptime and ensure data integrity.

Enterprise-Grade Features of the HPE P73131-B21 DDR5 Memory

As part of HPE’s extensive server memory ecosystem, the P73131-B21 DDR5 module delivers significant improvements over previous generations of server memory. Businesses and data centers that demand high-throughput, low-latency, and thermally efficient memory solutions can benefit from the multiple enhancements offered by DDR5 technology. From increased bandwidth to optimized power efficiency and enhanced reliability, this module represents a critical upgrade component for ProLiant Gen11 and other HPE server platforms that support DDR5 architecture.

Higher Data Transfer Rates with 4800MT/s Speed

One of the primary selling points of the HPE P73131-B21 is its impressive memory speed of 4800 mega transfers per second (MT/s). This high frequency translates to faster performance for server applications, including database management, virtualization, high-performance computing (HPC), and real-time analytics. With a PC5-38400 rating, this memory module is optimized to handle massive data workloads while maintaining low latency and high efficiency. This improvement is especially valuable for server environments where processing speed and multitasking capabilities are paramount.

PC5-38400 DDR5 RDIMM Architecture

The memory module utilizes the PC5-38400 standard, which designates its peak data bandwidth and performance tier. As a Registered DIMM, the HPE P73131-B21 is designed for stability and scalability in multi-module configurations. Unlike standard unbuffered memory, RDIMMs include a register between the DRAM modules and the memory controller, which reduces the electrical load and allows for more modules per channel—ideal for high-density server configurations. This characteristic is critical for modern enterprise servers with large memory footprints.

CL42 Latency and Performance Optimization

With a CAS latency of 42 cycles, the module strikes a balance between speed and latency. While DDR5 modules inherently offer greater bandwidth, latency tuning is essential for ensuring smooth, predictable performance in latency-sensitive environments. The CL42 latency rating, in combination with the 4800MT/s data rate, ensures that servers can retrieve and write data rapidly without bottlenecks, which is essential for real-time processing tasks and cloud-based services.

ECC Support for Enhanced Reliability

ECC (Error Correction Code) technology is built into this HPE DDR5 module to ensure data integrity and minimize the risk of data corruption. ECC is especially critical in server environments where uptime, accuracy, and system stability are non-negotiable. The ability to detect and correct single-bit errors without interrupting server processes makes ECC DDR5 an indispensable component for enterprise infrastructures that rely on consistent data throughput and high availability.

Compatibility and Server Integration

The HPE P73131-B21 is engineered for seamless compatibility with HPE ProLiant Gen11 servers and other DDR5-capable HPE systems. This ensures maximum performance and reliability when integrated into supported platforms. Its design aligns with strict HPE qualification standards, meaning it has undergone rigorous testing for compatibility, thermal efficiency, and data integrity.

ProLiant Gen11 Compatibility

This memory module is part of the certified memory options for the ProLiant Gen11 server series, which are designed for data-intensive workloads, AI applications, and advanced virtualization environments. When paired with Gen11 server motherboards and processors, the DDR5 module unlocks improved channel interleaving, memory mirroring, and memory sparing options that provide additional layers of reliability and performance optimization.

System Configuration Flexibility

HPE’s DDR5 RDIMMs support multiple configuration options, including multi-channel and dual-rank configurations, enabling IT administrators to customize memory setups based on workload requirements. Whether used in blade servers, tower servers, or rack-mounted configurations, the P73131-B21 adapts to varied operational environments with high efficiency and minimum compatibility issues.

Power Efficiency and Thermal Management

DDR5 technology introduces substantial improvements in energy efficiency over its DDR4 predecessor. The P73131-B21 operates at a lower core voltage while delivering increased performance per watt. These benefits help reduce total cost of ownership (TCO) and support data centers in achieving sustainability goals.

Reduced Power Consumption

Operating at just 1.1V, this DDR5 module consumes significantly less power than older memory types. For large-scale deployments involving dozens or hundreds of modules, the accumulated power savings are considerable. This not only reduces electricity costs but also helps in minimizing heat output, which contributes to more efficient cooling strategies in data centers.

Integrated PMIC and On-Die ECC

The DDR5 standard incorporates an integrated Power Management IC (PMIC), which allows for localized voltage regulation on the module itself rather than relying solely on the motherboard. This results in better power efficiency and voltage stability, enhancing the overall system reliability. Combined with on-die ECC, this architecture delivers both performance and fault tolerance.

Security and Data Integrity Features

Beyond performance and power efficiency, the HPE P73131-B21 is designed with enhanced security and data integrity mechanisms. Memory is increasingly becoming a focal point for system security, and HPE’s commitment to safeguarding business-critical data is evident in its DDR5 module designs.

Trusted Platform Module (TPM) Integration Compatibility

While TPM itself is a feature of the motherboard, HPE DDR5 memory modules are designed to function seamlessly within TPM-enabled server environments. This ensures that all system components—including memory—support secure boot, encrypted storage, and credential protection strategies aligned with modern enterprise security standards.

Use Cases and Application Environments

The HPE P73131-B21 DDR5 module is not just a performance component—it is a strategic upgrade for environments requiring robust, scalable, and secure memory infrastructure. Here are some of the top industry applications and operational scenarios where this module excels:

Virtualization and Cloud Computing

With the ever-growing adoption of virtual machines (VMs) and containerized environments, server memory must support rapid provisioning and scaling. The high bandwidth and low latency of DDR5 memory are ideal for running multiple VMs simultaneously without degradation in performance. The ECC and RDIMM architecture further ensure that virtual environments remain stable and secure under high memory loads.

High-Performance Computing (HPC)

Scientific simulations, data modeling, and AI training demand ultra-fast memory with large capacities. The HPE P73131-B21, with its 4800MT/s throughput and low power draw, is built to handle intensive workloads such as genomic sequencing, fluid dynamics modeling, and real-time data analysis. Its high reliability makes it an ideal fit for supercomputing clusters and research facilities.

Enterprise Database Hosting

Transactional databases such as Microsoft SQL Server, Oracle, and SAP HANA benefit from fast and reliable memory configurations. The P73131-B21’s fast access times, ECC protection, and optimized data throughput ensure that enterprise databases can operate at full capacity without the risk of memory-induced system errors or lags.

AI and Machine Learning Environments

Machine learning workloads involve massive data sets that must be held in memory for fast access and iterative computation. HPE’s DDR5 RDIMMs support these requirements with high speed and multi-threaded performance. Data scientists and AI developers can rely on this memory to deliver consistent performance during complex model training cycles.

Reliability and Warranty Assurance

The P73131-B21 memory module is factory-sealed and comes in its original box (FSB), reflecting HPE’s stringent packaging and quality control standards. Each unit is guaranteed new and untouched, which ensures the product's integrity upon arrival. Additionally, HPE includes a robust 3-year warranty that covers manufacturing defects and provides peace of mind for enterprise buyers.

Factory-Sealed Packaging (FSB)

Products labeled as “Factory-Sealed New in Original Box” are untouched by third-party refurbishers or unauthorized resellers. This not only ensures authenticity but also means the memory module has passed all original manufacturer quality assurance checks before being shipped. For IT departments and procurement professionals, this provides assurance of both reliability and value.

3-Year Warranty Coverage

The three-year warranty offered by HPE covers all critical aspects of product performance, including latent defects and premature failures. In enterprise scenarios where downtime equates to financial loss, the presence of a warranty-backed component significantly reduces risk and enhances operational continuity.

The Choose the HPE P73131-B21 DDR5 Memory

The HPE P73131-B21 32GB 4800MT/s DDR5 module is a smart investment for IT infrastructures that demand stability, scalability, and performance. With support for ECC, RDIMM architecture, and the latest DDR5 enhancements, this memory module provides the foundation for future-proofed server operations. Businesses can trust in HPE’s legacy of innovation and reliability, ensuring that each component—right down to the memory—is optimized for mission-critical workloads.

Key Benefits Summary

• Blazing-fast 4800MT/s data rate
• 32GB capacity ideal for multitasking and large data sets
• ECC protection for mission-critical reliability
• Factory-sealed in original HPE packaging
• 3-year manufacturer warranty
• Reduced power consumption with 1.1V operation
• Compatible with HPE ProLiant Gen11 and other DDR5-capable servers