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Compact silver power supply module with side handle and rear connector

HPE

HPE 865408-B21 500W Flex Slot Platinum Hot Plug Power Supply Kit

SKU CH-BQXD-T5W14 MPN 865408-B21

Hot-pluggable 500W server power supply with 96% efficiency and low-halogen design

  • Max wattage500 W
  • Product typeConsumer Electronics
  • Up to 96% efficiency with 80Plus Titanium certification
  • 25% smaller form factor frees space for additional server options
  • Hot-plug design enables fast tool-less power supply replacement
  • Compatible across HPE ProLiant Gen10 and 300 Series Gen9 families
  • Supports 230 V AC and 380 V DC input voltage

HPE 500W Flex Slot Platinum Power Supply

This HPE 500W Flex Slot Platinum Hot Plug Power Supply Kit delivers up to 500 watts of power for compatible HPE ProLiant Gen10 and Gen9 300 Series servers. It operates on 230 V AC or 380 V DC input and carries an 80Plus Platinum efficiency rating. The hot-plug design allows tool-less replacement while the server remains running.

Suited for dense HPE server deployments

This unit suits administrators who need efficient, hot-swappable power in supported HPE ProLiant Gen10 or Gen9 300 Series chassis. It is not for systems that require higher wattage per slot, such as 800W or 1600W Flex Slot models. Buyers with non-HPE hardware or older server generations outside the supported families should look elsewhere.

500W capacity for typical dual-socket configurations

At 500W the supply comfortably handles mainstream dual-processor configurations with standard memory and storage complements. Headroom decreases when many high-power CPUs, GPUs or large drive arrays are installed; such builds may exceed the 500W limit and require higher-capacity Flex Slot units. The 25% smaller form factor leaves more chassis space for additional server options.

How it compares

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

Price $195.99
Pricier than about 69% of the 3,798 comparable items (median $131.99).
Max wattage 500 W
Lower than about 60% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameHP
Model name865408-B21
Product typeConsumer Electronics
Power
Max wattage500 W
Size & build
Shipping weight1.77 kg
Package size381 × 254 × 210 mm

Questions about this item

Does the HPE 865408-B21 require a specific server chassis to operate?

This power supply kit is supported across HPE ProLiant Gen10 and HPE ProLiant 300 Series Gen9 server families, so a compatible server from those lines is required.

Will this 500W Platinum unit work in a system that currently uses older generation power supplies?

The Flex Slot form factor is 25% smaller than previous generation power supplies, so it fits the same supported servers but not older, larger bays.

How can I verify the 865408-B21 is delivering power correctly after installation?

The unit provides up to 96% power efficiency with 80Plus Titanium certification, and hot plug capability allows tool-less verification while the server runs.

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