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Main Specifications

Cooler Master eXtreme Power Plus 550 W power supply specs include:

  • ATX12V 2.3
  • Nominal labeled power: 550 W
  • Measured maximum power: 503.4 W at 45.5° C.
  • Labeled efficiency: Above 70%
  • Measured efficiency: Between 73.2% and 77.5% at 115 V (nominal, see complete results for actual voltage).
  • Active PFC: No.
  • Modular Cabling System: No.
  • Motherboard Power Connectors: One 20/24-pin connector and two ATX12V connectors that together form an EPS12V connector.
  • Video Card Power Connectors: Two six/eight-pin connectors in separated cables.
  • SATA Power Connectors: Six in two cables.
  • Peripheral Power Connectors: Three in one cable.
  • Floppy Disk Drive Power Connectors: One.
  • Protections: over voltage (OVP), over power (OPP) and short-circuit (SCP). Under voltage protection (UVP) present but not listed by the manufacturer.
  • Warranty: Information not available.
  • Real Model: Seventeam ST-500BAZ
  • More Information: http://www.coolermaster-usa.com
  • Average price in the US*: USD 65.00.

* Researched at Newegg.com on the day we published this review.

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Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.