Power Supply Unit HPE 865414-B21 800W 80 PLUS Platinum Grey

The HPE 865414-B21 is an 800W Flex Slot power supply for HPE ProLiant servers. It delivers high energy efficiency with 80 PLUS Platinum certification and a compact form factor that is 25% smaller than previous generation common-slot supplies. The unit supports standard AC input voltages and provides tool-less hot-plug access for faster serviceability while being compatible across HPE ProLiant Gen10 and HPE ProLiant 300 Gen9 server families.

Advantages

This power supply offers up to 94% efficiency under typical operating conditions and helps reduce server power consumption and data center energy waste. Its smaller Flex Slot form factor frees internal space for additional server options and improved IT performance. Tool-less hot-plug capability simplifies maintenance and replacement, and broad compatibility across ProLiant Gen10 and 300 Gen9 servers streamlines spare-part management.

Suitable for

• HPE ProLiant Gen10 servers
• HPE ProLiant 300 Gen9 server series
• Enterprise data center racks requiring high-efficiency PSUs
• Environments needing tool-less hot-swap serviceability

Key specifications

• Total power: 800 W
• Efficiency: 94%
• 80 PLUS certification: 80 PLUS Platinum
• Input voltage range: 100–240 V AC
• Input frequency: 50–60 Hz
• Product colour: Grey
• Weight: 1.809 kg
• Form factor: HPE Flexible Slot (25% smaller than previous HPE common-slot supplies)

How to use

Install the PSU into a compatible HPE server chassis following the server manufacturer’s installation instructions. Ensure the server is powered down or that hot-swap procedures are followed according to your data center policy. Connect the AC input within the specified 100–240 V, 50–60 Hz range and verify the PSU is properly seated in the Flex Slot connector. Use the tool-less release mechanism for removal or replacement during maintenance.

Recommendations

For optimal efficiency and reliability, operate the PSU within recommended ambient temperature ranges and use compatible HPE ProLiant systems. Maintain appropriate airflow in the server chassis and follow HPE guidelines for redundancy and spare-part strategy to minimize downtime.