HP 1000W 399771-B21 Server Power Supply (DL380, ML350, ML370 G5 Series)

The HP 1000W 399771-B21 Server Power Supply is a high-efficiency, enterprise-grade PSU designed for HP ProLiant DL380, ML350, and ML370 G5 series servers. Built to support the power-hungry demands of today’s data center environments, this hot-pluggable power supply delivers 1000 watts of reliable power with 80 PLUS Silver energy efficiency. Whether you’re upgrading or replacing, this unit ensures consistent uptime, system stability, and scalable performance with support for redundant configurations.

Product Features

High Power Output

Delivers 1000 watts of power, supporting modern server workloads and ensuring consistent performance under full system load.

Enterprise Compatibility

Specifically designed for HP ProLiant DL380, ML350, and ML370 G5 servers, offering seamless integration and reliable operation.

Hot-Plug Capability

Supports hot-swapping for quick installation and replacement without powering down the server, reducing downtime and improving serviceability.

Redundancy Support

Enables redundant power configurations, enhancing system availability and fault tolerance for critical operations.

Energy Efficient

Certified with 80 PLUS Silver efficiency rating, minimizing energy waste and operational costs while reducing heat output.

Product Specifications

• Power Capacity: 1000 Watts
• Compatibility: HP ProLiant DL380 G5, ML350 G5, ML370 G5
• Input Voltage: 100–240V AC
• Input Frequency: 50–60Hz
• Efficiency Certification: 80 PLUS Silver
• Hot-Plug Capability: Yes
• Redundancy Support: Yes, supports redundant configurations
• Part Number: 399771-B21
• Form Factor: Standard power supply (form factor not explicitly specified by manufacturer)