HPE 865438-B21 – 800W Flex Slot Titanium Hot Plug Power Supply Kit

HPE 865438-B21 – 800W Flex Slot Titanium Hot Plug Power Supply Kit

Overview

The HPE 865438-B21 is an 800W Flex Slot Titanium hot-plug power supply kit designed for HPE ProLiant and Apollo server platforms. It provides redundant and high-efficiency power delivery for enterprise server environments requiring continuous uptime and scalable infrastructure support.

The power supply delivers up to 96% efficiency with 80 PLUS Titanium certification, helping reduce power waste and thermal output in high-density data center deployments. Its Flex Slot architecture also reduces physical footprint while improving airflow and serviceability.

This unit supports hot-plug operation, allowing replacement without shutting down the server. It is commonly deployed in enterprise virtualization clusters, cloud infrastructure, and business-critical compute environments where reliable power redundancy is required.

The module integrates into HPE Gen10, Gen10 Plus, and selected Gen11 server ecosystems using compatible Flex Slot power supply bays and redundant server power configurations.

Typical Deployment Scenarios

Used in HPE ProLiant DL360, DL380, DL560, Apollo, and enterprise rack server environments requiring redundant hot-plug power supplies. Common in virtualization clusters, enterprise applications, private cloud infrastructure, and high-availability data center deployments.

Technical Specifications

Compatibility / Ecosystem

Compatible with HPE ProLiant DL360 Gen10, DL380 Gen10, DL560 Gen10, Apollo Gen10 systems, and selected HPE enterprise platforms supporting Flex Slot power architecture. Designed for redundant server power configurations in enterprise environments.