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SilverStone 550w Strider 80+ Platinum Power Supply (ST55F-PT)

SilverStone 550w Strider 80+ Platinum Power Supply (ST55F-PT)
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  • Product Name:
    SilverStone 550w Strider 80+ Platinum Power Supply (ST55F-PT)
  • Model Number:
  • Brand:
  • Manufacturer Warranty:
    5 Year


  • Compact design with a depth of 140mm for easy integration

  • High efficiency with 80 PLUS Platinum certification

  • 100% modular cables

  • 24/7 continuous power output with 40ƒ operating temperature

  • Class-leading single +12V rail

  • Strict ±3% voltage regulation and low ripple & noise

  • Ultra silent 120mm fan with intelligent semi-fanless operation

     As desktop computers continue to advance toward ever more efficient and smaller designs, SilverStone is helping to drive the efficiency movement by releasing the Strider Platinum series of power supplies. Created to be the smallest fully modular ATX power supplies with 80 PLUS Platinum efficiency, they are also incredibly quiet with the ability to run in fanless mode. If the loading condition is below 20%, the fan in the power supply can remain off for silent operation during idle or low powered computing activities. Other great features inherited from previous Strider series include ±3% regulation, powerful single +12V rail, 24/7 continuous power output, and multiple PCI-E cables. For those looking to build highly efficient systems in small footprints, the Strider Platinum is definitely the best choice.

    SilverStone 550w Strider 80+ Platinum Power Supply (ST55F-PT)    

Model No.Model No.
Max. DC Output550W
Power density305W per liter
Load Range +3.3V+5V+12V+5VSB-12VMax.(Amps)20A20A45.9A3.0A0.3APeak (Amps)/////Min.(Amps)0A0A0A0A0ARange (%)±3%±3%±3%±5%±10%Line Reg.(%)±1%±1%±1%±1%±1%Ripple(mVp-p)50mV50mV120mV50mV120mV
ColorBlackˆLead-Free Paint
combined +3.3, +5V105W
combined +12V550W
Input Voltage90V~264V
Input Frequency Range47Hz~63Hz
PFCActive PFCˆPF>0.9 at full load
Efficiency89%~92% at 20%~100% loading
MTBF100,000 hours
Operating temperature0°C ~ 40°C
ProtectionOver current protection
     Over power protection
     Over voltage protection
     Under voltage protection
     Over temperature protection
     Short circuit protection
Connectors1 x 24 / 20-Pin motherboard connectorˆ550mm‰
     1 x 8 / 4-Pin EPS / ATX 12V connectorˆ750mm‰
     2 x 8 / 6-Pin PCIE connectorˆ"550mm"x2‰
     8 x SATA connectorˆ"600mm / 150mm / 150mm /150mm"x2‰
     6 x 4-Pin Peripheral connectorˆ"600mm / 150mm / 150mm"x2‰
     2 x 4-Pin Floppy connectorˆ"600mm / 150mm / 150mm / 150mm"x2‰
Cooling SystemSingle 120mm silent fan
Noise Leve0 ~ 28 dBA
Dimension150 mm (W) x 86 mm (H) x 140 mm (D)
Weight2.15 kg
Form factorATX
Certification80 PLUS Platinum
OtherGPU Support list 
     Compatible with ATX12V v2.4


  • Specifications are subject to change without notice.

  • Specifications may vary.

  • The product picture(s) is only for your reference, it may differ from the actual product.

    SilverStone 550w Strider 80+ Platinum Power Supply (ST55F-PT)



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