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Rectangular black PSU with flat black cables and 140mm fan

NO.

NO. ET550-HG 550 Watt Semi-Modular 80 Plus Gold Power Adapter

SKU CH-N53T-7KD5K

550 Watt semi-modular power supply with 80 PLUS Gold efficiency, single +12V rail, 140mm fan at 18 dBA, and PCIe 8pin plus 6pin connectors

  • 80 PLUS Gold certification delivers high efficiency
  • 550 W continuous output rated at 40 °C operating temperature
  • Semi-modular design with all-black flat cables eases cable management
  • Single +12 V rail provides class-leading power stability
  • 140 mm fan runs at 18 dBA for silent operation

Product Identity

The NO. ET550-HG is a 550 Watt semi-modular power supply with 80 Plus Gold certification. It delivers continuous output at 40°C and uses a single +12V rail design. All-black flat cables simplify routing inside the chassis.

Who It Suits

Builders who value tidy cable management and quiet operation will appreciate the semi-modular layout and the 140mm fan rated at 18 dBA. Systems needing more than 550 Watts or fully modular cabling should consider other options.

Sustained Load Behaviour

The unit is rated for 24/7 continuous power output at 40°C operating temperature. A single +12V rail provides stable voltage across extended sessions. The 140mm fan maintains low noise while dissipating heat during prolonged use.

Highlights

  • 80 PLUS Gold certification delivers high efficiency
  • 550 W continuous output rated at 40 °C operating temperature
  • Semi-modular design with all-black flat cables eases cable management
  • Single +12 V rail provides class-leading power stability
  • 140 mm fan runs at 18 dBA for silent operation

Specifications

No published specifications for this item yet.

Questions about this item

Does this power supply need a standard ATX motherboard and case to work?

Yes, the unit is a 550 Watt ATX power supply designed for a standard motherboard and case.

Can the single +12V rail power older graphics cards that only have a 6-pin PCIe connector?

The class-leading single +12V rail provides stable power and the unit includes both PCIe 8pin and PCIe 6pin connectors for older cards.

How can I confirm the fan is running at its rated 18 dBA after installation?

The 140mm fan is rated at 18 dBA; you can verify quiet operation by listening for low noise under load.

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