HPE 800W Hot-Plug Power Supply (P40405-B21) for ProLiant

Usage Area

The HPE 800W power supply unit (P40405-B21) is designed for deployment in rack-mount and tower servers operating within enterprise data centers and server rooms. It provides reliable 24×7 power delivery for continuous operation in critical infrastructure environments. The unit is suitable for use in redundant power configurations to ensure high availability of server systems. It is intended for integration into HPE server platforms where hot-plug power supply modules are required.

Construction Features

• Hot-plug (hot-swappable) design enables replacement without shutting down the server
• Supports 1+1 redundant configuration for enhanced system fault tolerance
• Enterprise-class construction engineered for round-the-clock operation
• Form factor compatible with standard server power supply bays
• Field-replaceable unit (FRU) design for simplified maintenance procedures
• Backed by HPE manufacturing quality for consistent performance

Technical Parameters

• Part Number (PN): P40405-B21
• Manufacturer: HPE
• Model: HPE 800W
• Power Output: 800 W
• Type: Hot-plug (hot-swap)
• Class: Enterprise, 24×7 operation
• Compatibility: Specific server model compatibility to be verified at time of order

Standards & Certification

The power supply unit is manufactured in compliance with industry standards applicable to enterprise-class server components. It meets HPE internal quality and reliability specifications for data center equipment. The unit is designed to conform to standard electrical safety and electromagnetic compatibility requirements for IT hardware.