HPE 865414-B21 800W Flex Slot Platinum Hot-Plug Power Supply – Reliable Performance for Modern Data Centers
The HPE 865414-B21 800W Flex Slot Platinum Hot-Plug Power Supply is a high-efficiency, enterprise-grade power solution designed to deliver consistent and reliable energy to HPE ProLiant Gen10 and select Gen9 servers. Built for scalability, performance, and durability, this power supply unit (PSU) is a key component in maintaining optimal uptime, energy efficiency, and operational flexibility within modern data centers. It combines advanced engineering, environmental responsibility, and innovative design to meet the demands of businesses that require maximum performance and reliability from their IT infrastructure.
Exceptional Power Efficiency
One of the standout features of the HPE 865414-B21 is its Platinum-level energy efficiency, achieving up to 94–96% efficiency rates under standard workloads. This means less power is wasted as heat, resulting in reduced energy consumption and lower operational costs over time. For organizations seeking to minimize their carbon footprint and meet sustainability goals, this PSU is an ideal choice. The Platinum certification also ensures compliance with strict industry standards, making it suitable for high-performance and energy-conscious environments.
Hot-Plug Flexibility and Easy Maintenance
The hot-plug capability of the HPE 865414-B21 enables users to replace or install the power supply without shutting down the server, ensuring zero downtime during maintenance or upgrades. This is particularly critical for businesses that operate 24/7 or manage mission-critical applications where uptime is essential. The Flex Slot design further enhances modularity, allowing for quick installation or removal while maximizing compatibility with HPE ProLiant servers. This design not only saves time but also simplifies scalability and reduces the risk of power disruptions during service operations.
Compact and Scalable Design
The compact Flex Slot form factor is engineered to optimize space within the server chassis, ensuring efficient airflow and cooling performance. The PSU’s modular design allows for the use of multiple power supply units in redundant configurations, providing additional power resilience. Whether deployed in small business servers or large enterprise rack systems, the 865414-B21 delivers consistent power output while maintaining compatibility with a wide range of HPE server models, including the ProLiant DL and ML series.
Enhanced Reliability and Safety
Reliability is at the core of the HPE 865414-B21. It is built with advanced protective features such as overvoltage, overcurrent, short-circuit, and thermal protection, ensuring that both the power supply and the connected hardware remain safe from potential electrical faults. The PSU also includes active power factor correction (PFC), improving electrical efficiency and stability. Its robust build and precision engineering ensure long-term reliability, making it a dependable choice for continuous operation in demanding data center environments.
Global Compatibility and Versatility
With a universal input voltage range of 100–240V AC, the HPE 865414-B21 supports deployment across global regions without requiring additional adapters or transformers. This flexibility makes it ideal for international enterprises that operate data centers in different power environments. It also supports both single and redundant power configurations, giving IT administrators the flexibility to tailor power setups based on specific workload or redundancy requirements.
Eco-Friendly and Low Halogen Design
In line with HPE’s commitment to environmental responsibility, the 865414-B21 features a Low Halogen design, reducing hazardous materials and ensuring compliance with modern eco-friendly manufacturing standards. This makes it a responsible choice for organizations focused on sustainability and environmental impact reduction.
Seamless Integration with HPE Servers
The 865414-B21 is optimized for use with HPE ProLiant servers, ensuring seamless communication between the PSU and the system’s power management features. It integrates with HPE’s Intelligent Power Discovery (IPD) tools, enabling administrators to monitor power usage, manage efficiency, and predict potential power-related issues before they occur. This level of integration helps streamline IT operations and enhances system performance management.
Ideal Use Cases
The HPE 865414-B21 is suitable for a wide range of applications, including enterprise data centers, virtualization platforms, storage networks, and cloud-based infrastructures. Its design caters to businesses that require scalability, efficiency, and reliability, such as financial institutions, telecommunications companies, and IT service providers. Whether supporting high-performance computing clusters or general business workloads, it ensures stable and continuous power delivery.
Conclusion
The HPE 865414-B21 800W Flex Slot Platinum Hot-Plug Power Supply stands as a benchmark in server power management. Its combination of efficiency, reliability, and hot-swappable functionality makes it a critical component for businesses seeking continuous uptime and sustainable performance. By integrating energy-saving technologies and high safety standards, it not only protects your investment but also contributes to long-term cost savings and environmental stewardship.
In summary, the HPE 865414-B21 delivers a balance of power, performance, and practicality, making it an indispensable upgrade or replacement option for enterprise-grade HPE servers. With its platinum efficiency, modular design, and robust reliability, this PSU ensures your server infrastructure remains efficient, dependable, and ready for future growth.

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