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Grey ATX power supply unit with single fan and multiple connectors

Replace Power

Replace Power 550W ATX Power Supply Grey

SKU CH-AF4F-S6E5B

Grey ATX power supply with 20+4 pin, 4-pin +12V, 6-pin and SATA connectors for HP Pavilion 550-169c and 550-175hk desktops

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight1
  • Direct replacement for HP Pavilion 550 models
  • 550 watt output powers standard desktop builds
  • Single fan provides active cooling
  • 20+4 pin ATX and 4-pin 12V connectors included
  • Three SATA power connectors for storage drives

Replacement 550W ATX Power Supply

This Replace Power unit is a direct swap for HP Pavilion 550-169c and 550-175hk desktops. It delivers 550W through a standard ATX form factor in a grey enclosure. The package includes a 20+4 pin ATX connector, a +12V 4-pin connector, one 6-pin power connector and three SATA connectors for drives.

Sustained load behaviour

A single fan cools the supply during continuous operation. The connector set supports a motherboard, CPU power and multiple SATA devices simultaneously. The unit is built as a replacement upgrade, meaning it matches the original electrical specification for long-term service in the target chassis.

Upgrade context

This supply replaces the factory unit in the listed Pavilion models when the original fails or when a rebuild requires a fresh PSU. It is not for builders who need more connectors than the provided 20+4 pin, 4-pin, 6-pin and three SATA leads. It is not for systems that require a different form factor or higher wattage than 550W.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $56.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

How loud does the single fan get when the 550 W unit runs continuously under load?

The power supply uses one fan to move air through the chassis; acoustic output will depend on case airflow and ambient temperature rather than a published sound-pressure figure.

Which existing cables or connectors must my motherboard and drives already provide for this PSU to work?

Your board needs a 20+4 pin ATX socket and a +12 V 4-pin CPU socket, while storage devices require standard SATA power plugs.

Will the 6-pin and SATA leads power older graphics cards and mechanical drives I want to keep?

Yes, the single 6-pin PCIe connector and three SATA power connectors can supply legacy GPUs and hard drives that use those interfaces.

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