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Silver rectangular server power supply unit with rear handle and ventilation grille

HPE

HPE 656364-B21 1200W Common Slot Platinum Plus Hot Plug Server Power Supply

SKU CH-FPDX-ATC3E

A 1200W hot-plug power module for HP servers, delivering 94% efficiency to cut energy waste by up to 60W per server

  • Max wattage1200 W
  • Product typePower Module
  • 94% Platinum Plus efficiency reduces data-centre power draw by up to 10%
  • Hot-swap Common Slot design enables tool-less replacement without server downtime
  • 1200W maximum output right-sizes capacity to avoid trapped power
  • Part 656364-B21 fits HPE server and storage platforms
  • Up to 60W saved per server compared to earlier G6 estimates

1200W Common Slot Platinum Plus Power Supply

This HPE 656364-B21 unit delivers up to 1200W of power for compatible HP server and storage platforms. It uses the Common Slot form factor for hot-swap, tool-less installation. The Platinum Plus efficiency rating reaches 94 percent, helping reduce energy waste in data centre deployments.

Suited for HPE server racks needing right-sized

Administrators who want to minimise trapped capacity and support hot-plug maintenance will benefit from this design. It is not for systems that lack Common Slot bays, nor for builds requiring a different voltage input or output configuration than the platform specifies.

Handles up to 1200W load

The supply can lower per-server draw by up to 60W compared with earlier G6 estimates and cut overall data centre power by up to 10 percent. It runs out of headroom when the connected hardware demands more than its maximum rated output or when the chassis does not support Common Slot Platinum Plus modules.

How it compares

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

Price $36.99
Cheaper than about 91% of the 3,798 comparable items (median $131.99).
Max wattage 1200 W
Higher than about 80% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameHP
Product typePower Module
Power
Max wattage1200 W

Questions about this item

Which HP server chassis accepts the 656364-B21 Common Slot power supply?

The 656364-B21 fits any HP server or storage solution designed for Common Slot (CS) power supplies, which share a common electrical and physical design for hot-swap, tool-less installation.

Can I mix this 1200W Platinum Plus unit with older Common Slot supplies in the same chassis?

Yes, CS power supplies share a common electrical and physical design, so the 656364-B21 can operate alongside older CS units in supported HP server and storage solutions.

What LED indication confirms the 1200W supply is delivering power after hot-plug insertion?

A green LED on the module lights when the 656364-B21 is seated, receiving AC input, and providing 1200W output to the server backplane.

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