HPE 800W Hot-Plug Power Supply (P19778-B21)

What It Is

The HPE 800W (P19778-B21) is an enterprise-class server power supply unit rated at 800 W. It is designed for hot-plug operation, enabling replacement without powering down the host system. This unit is intended for continuous 24×7 deployment in server infrastructure, supporting redundant configurations for fault tolerance.

Technical Details

• Part Number (PN): P19778-B21
• Manufacturer: HPE
• Model: HPE 800W
• Power Output: 800 W
• Type: Hot-plug (hot-swappable)
• Class: Enterprise (24×7)
• Form Factor: Compatible with rack and tower servers

Configuration & Options

• Supports hot-plug replacement in active server environments.
• Designed for redundant power supply configurations (1+1) to enhance system availability.
• Suitable for installation in HPE rack and tower server chassis.
• Compatibility with specific server models must be verified at the time of order.
• Single-unit supply; additional units may be required for redundancy.

Operating Conditions

This power supply is engineered for continuous round-the-clock operation in enterprise server rooms and data centers. It is intended for use within HPE rack and tower servers that support hot-plug power modules. The unit is suitable for deployments requiring high availability and minimal maintenance downtime. Environmental limits and server-specific installation requirements should be confirmed against the target system’s documentation.