HPE 865428-B21 – 800W Flex Slot Hot Plug Power Supply

HPE 865428-B21 – 800W Flex Slot Hot Plug Power Supply

Overview

The HPE 865428-B21 is an 800W Flex Slot hot-plug power supply kit designed for HPE ProLiant and Apollo server platforms. It delivers enterprise-grade power distribution for rack server environments requiring redundant and serviceable power infrastructure.

The unit supports high-voltage AC and DC input operation with up to 94% power efficiency. Its Flex Slot architecture reduces power waste, improves airflow efficiency, and enables simplified hot-plug installation in compatible server chassis.

This power supply is commonly deployed in enterprise data centers, virtualization environments, and high-density compute infrastructures where reliable continuous power delivery is required. It is suitable for workloads demanding scalable and energy-efficient server operation.

The module integrates with HPE Gen9 and Gen10 server ecosystems using Flex Slot power supply architecture and supported redundant power configurations.

Typical Deployment Scenarios

Used in HPE ProLiant and Apollo servers requiring redundant hot-plug power supplies for virtualization clusters, enterprise applications, cloud infrastructure, and business-critical server environments. Common in data centers where uptime and efficient power management are essential.

Technical Specifications

Compatibility / Ecosystem

Compatible with HPE ProLiant DL160, DL180, DL360, DL380, DL385, DL560, ML350, and selected Apollo server platforms supporting Flex Slot power supply architecture. Designed for enterprise environments requiring redundant hot-plug server power configurations.