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Rectangular black ATX power supply unit with cooling fan and multiple cable connectors

myVolts

myVolts Power Supply for HP Pavilion 550-102a 550-103a DT PC

SKU CH-YMST-MB2DF

Replacement AT power supply for HP Pavilion 550-102a and 550-103a desktops with 20+4 pin ATX, 4-pin +12V, 6-pin and three SATA connectors

  • Product typeAT
  • Replacement power supply for HP Pavilion 550 models
  • 20+4 pin ATX connector fits standard motherboard
  • 4-pin +12V connector powers the CPU
  • Three SATA connectors support multiple drives
  • 6-pin power connector for graphics cards

Replacement PSU for HP Pavilion 550 Series

This new AT-type power supply replaces the original unit in HP Pavilion 550-102a and 550-103a desktop PCs. It delivers a direct upgrade path for systems requiring a standard ATX power source. The unit includes the essential connectors to support the motherboard and internal drives.

Connector and Form-Factor Check

Verify that your motherboard accepts a 20+4 pin ATX connector and a +12V 4-pin power connector. Ensure the chassis has space for an AT form-factor supply and that your storage devices use SATA power interfaces. The cable set provides one 6-pin connector plus three SATA plugs for peripheral power.

Ideal for Direct HP Replacements

Suits owners of the listed Pavilion models who need a new power supply with matching connectors. Builders working on other platforms or requiring different connector counts should look at alternative units. This PSU is not for systems needing proprietary HP pin-outs or higher connector quantities.

How it compares

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

Price $100.99
Cheaper than about 67% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

What connectors come with the myVolts unit for the HP Pavilion 550-102a and 550-103a, and what must I source separately?

The supply includes a 20+4 pin ATX connector, a +12V 4-pin connector, one 6-pin connector and three SATA connectors; any additional cables or adapters for other devices are not included.

Which version of this replacement PSU should I choose for a Pavilion 550-102a versus a 550-103a?

The same unit fits both the 550-102a and 550-103a desktops; there is no separate version to select.

What does the 20+4 pin ATX connector do once installed in the 550 chassis?

It mates with the motherboard’s main power socket and delivers the power rails the 550 platform requires.

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