HPE 800W Hot-Plug Power Supply (P40404-B21)

What It Is

The HPE 800W (P40404-B21) is an enterprise-class server power supply unit delivering 800 W output. This hot-plug (hot-swap) PSU is designed for continuous 24×7 operation in rack and tower server environments, supporting redundant configurations for high availability.

Technical Details

• Part Number (PN): P40404-B21
• Brand: HPE
• Model: HPE 800W
• Power Output: 800 W
• Type: Hot-plug (hot-swappable)
• Class: Enterprise server grade, rated for 24×7 duty cycle
• Redundancy Support: Capable of 1+1 redundant power configuration

Configuration & Options

• Single PSU unit; compatible with HPE rack and tower servers supporting this power supply form factor
• May be ordered as part of a redundant pair (1+1) for fault-tolerant power delivery
• Hot-plug design allows replacement without server shutdown
• Verify exact server model compatibility with the P40404-B21 before integration

Operating Conditions

This power supply is intended for deployment in data center or server room environments where continuous, reliable power is critical. It is engineered for round-the-clock operation in enterprise IT infrastructure, supporting hot-swap maintenance and redundant power topologies to minimize downtime. Suitable for use in standard rack-mounted and tower server chassis within the specified HPE compatibility matrix.