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    SilverStone Essential Series SST-ET550-HG 550 W ATX12V 80 PLUS GOLD Certified Semi-Modular Active PFC Power Supply

    • ATX12V
    • Semi-Modular
    • 80 PLUS GOLD Certified
    • 100 - 240 V 47 - 63 Hz
    • +3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5VSB@2.5A
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    Specs
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    Learn more about the Silverstone SST-ET550-HG

    General
    Brand SilverStone
    Series Essential Series
    Model SST-ET550-HG
    Details
    Type ATX12V
    Maximum Power 550 W
    Fans Single 140mm silent fan
    PFC Active
    Main Connector 20+4Pin
    +12V Rails Single
    PCI-Express Connector 2 x 6+2-Pin
    SATA Power Connector 9
    Max PSU Length 160 mm
    Modular Semi-Modular
    Efficiency 87% ~ 90% at 20% ~ 100% loading
    Energy-Efficient 80 PLUS GOLD Certified
    Over Voltage Protection Yes
    Input Voltage 100 - 240 V
    Input Frequency Range 47 - 63 Hz
    Input Current 8A
    Output +3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5VSB@2.5A
    MTBF 100,000 hours
    Connectors 1 x 24 / 20-Pin motherboard connector (500mm)
    1 x 8 / 4-Pin EPS / ATX 12V connector (750mm)
    2 x 8 / 6-Pin PCIe connector ("500mm / 150mm" x 2)
    9 x SATA connector ("500mm / 150mm / 150mm" x 3)
    3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)
    1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
    Features
    Features High efficiency with 80 PLUS Gold certification

    Semi-modular cables facilitate cable management

    24/7 continuous power output with 40 degree C operating temperature

    Class-leading single +12V rail

    Silent running 140mm fan with 18 dBA

    PCIe 8pin and PCIe 6pin connectors support

    All-black flat cables design
    Dimension & Weight
    Dimensions 5.91" x 3.39" x 6.30"
    Weight 4.25 lbs.
    Additional Information
    First Listed on Newegg December 25, 2025

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