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Grey ATX power supply unit with single fan

Replace Power

Replace Power RPSU-C99-30 power supply 420W ATX

SKU CH-MQT5-7FW17 MPN RPSU-C99-30

A 420 W ATX power supply with SATA, 20+4 pin and 12 V connectors for Sony Vaio VGC-RB42G, VGC-RB44G and VGC-RB50 desktops

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Delivers 420W for reliable desktop operation
  • Single fan provides active cooling for the unit
  • Grey ATX form factor fits standard chassis
  • Includes 20+4 pin motherboard connector for broad compatibility
  • Supplies SATA and Molex power connectors for drives

Replacement PSU for Sony Vaio Desktops

This 420W ATX unit from Replace Power is built as a direct replacement for the Sony Vaio VGC-RB42G, VGC-RB44G and VGC-RB50 models. It uses a standard ATX form factor with a single fan and a grey finish. The unit delivers 420W of continuous power to restore operation to these specific legacy desktops.

Suits owners of the listed Vaio models.

This supply matches the proprietary connector layout and 420W rating required by the three named Vaio chassis. Builders working with standard ATX motherboards or modern GPU configurations should look elsewhere because the fixed cable lengths and connector mix are tailored to the original Sony designs.

420W output with 20+4 pin ATX and SATA connectors

The single rail delivers 420W through a 20+4 pin motherboard plug, a dedicated 12V ATX connector, two large peripheral connectors, two short peripheral connectors, one SATA connector and one floppy connector. This exact complement determines whether the unit fits the target Vaio without adapters.

How it compares

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

Price $58.99
Cheaper than about 86% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameReplace Power
Model nameRPSU-C99-30
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

Does the RPSU-C99-30 include all cables or do I need to buy extra connectors?

The unit ships with one 15-inch SATA connector, one 14-inch 20+4 pin ATX connector, one 14-inch 12V ATX connector, two 15-inch large power connectors, two 6-inch large power connectors and one 6-inch small power connector.

How do I pick the right capacity for a Sony Vaio VGC-RB42G, VGC-RB44G or VGC-RB50?

This 420W model is listed as the direct replacement for the VGC-RB42G, VGC-RB44G and VGC-RB50, matching the original wattage and connector layout.

What does the 420W rating mean when the PSU is installed in one of those Vaio desktops?

It supplies up to 420W total across the 20+4 pin motherboard plug, the 12V ATX plug, the SATA connector and the peripheral power connectors for drives and add-in cards.

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