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Rectangular silver server power supply unit with rear fan grille and power socket

WMtec

WMtec 865408-b21 500W server power supply

SKU CH-MHQB-HBFDW MPN 865408-b21

500W server power supply compatible with H-P G10 systems using part numbers 865408-b21, 865398-001, and 866729-001

  • Designed for H-P G10 servers ensures direct compatibility
  • 500W output delivers stable power for demanding workloads
  • New condition guarantees full factory performance and reliability
  • Matches part numbers 865398-001 and 866729-001 simplifies replacement ordering
  • Server-grade build quality supports continuous operation in critical environments

HP G10 500W Server Power Supply

The WMtec 865408-b21 is a new 500W server power supply built for HP G10 systems. It matches part numbers 865398-001 and 866729-001 for direct compatibility. This unit delivers reliable power for enterprise server deployments.

Replaces failed or degraded G10 units

Swapping in this supply restores full rated output when the original unit fails or shows signs of wear. The jump is worth it when uptime is critical and a cold spare is not on hand. Matching the three listed part numbers avoids fitment errors during replacement.

Suits IT teams maintaining HP G10 fleets

Administrators who need a verified 500W replacement for the listed part numbers will find this unit fits the slot and power budget. Buyers who need a different wattage, form factor, or support for non-G10 platforms should look at other options.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $675.99
Pricier than about 90% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will this 500W unit fit the standard hot-plug bay in my H-P G10 server?

It is built to the same form factor as the original 865408-b21, 865398-001 and 866729-001 supplies, so it slides directly into the G10 hot-plug bay without adapters.

What is the correct way to seat this supply, and what step do people often miss?

Push the unit firmly until the latch clicks; the step many miss is verifying the amber LED turns green, confirming full electrical contact.

Which replaceable part inside this 500W supply will need attention first?

The internal cooling fan is the only moving component; plan to replace the fan assembly when bearing noise appears or airflow drops.

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