Legacy Products

Power Supplies

 

ST40NF

INTRODUCTION

As a step-up from the venerable ST30NF, SilverStone’s first fan-less power supply, the newer Nightjar series ST40NF achieves its continuous power output up to 400W. This is the power level that has become the mainstream application for a new generation of silent computers. By again combining superior server-level components and advanced technical design, the ST40NF has high reliability and efficiency. It can maintain 82%~86% efficiency at 20%~100% loading, earning it 80 PLUS Bronze certification. Coupled with single PCI-E 8 pin connector and dual PCI-E 6pin connectors, the ST40NF can also support high-end graphics cards if needed. For silent enthusiasts or audio/video professionals, getting this power supply will certainly be one of the most important upgrade in completing a truly silent computing environment.



SPECIAL FEATURES

  • Fan-less thermal solution, 0 dBA acoustics.
  • Efficiency 82%~86% at 20%~100% loading with 80 PLUS Bronze certification
  • 400W continuous power output
  • Strict ±3% voltage regulation
  • Single PCI-E 8pin and dual PCI-E 6pin support High-end GPU
  • Aluminum construction
  • Server-level components
  • Supports ATX 12V 2.3 & EPS 12V
  • Active PFC



  • Download :
  • ST40NF Manual


  • SPECIFICATIONS

    Model No.
    SST-ST40NF
    Max. DC Output
    400W
    Power density
    194W per liter
    Load Range
     
    +3.3V +5V +12V +5VSB -12V
    Max.(Amps)
    20A 14A 27A 2.5A 0.5A
    Peak (Amps)
    / / 31.5A 3.5A /
    Min.(Amps)
    0A 0A 0.2A 0A 0A
    Range (%)
    +/-3% +/-3% +/-3% +/-5% +/-10%
    Line Reg.(%)
    +/-1% +/-1% +/-1% +/-1% +/-1%
    Ripple(mVp-p)
    50mV 50mV 120mV 50mV 120mV
    Color
    Silver
    Combined +3.3V & +5V
    130W Max
    Combined +12V
    324W(27A)
    Input Voltage
    99V ~ 264V
    Input Frequency Range
    47Hz ~ 63Hz
    PFC
    Active PFC (PF>0.99 at full load)
    Efficiency
    82%~86% at 20%~100% loading
    MTBF
    100,000 hours at 25°C (at full load)
    Operating temperature
    0 ~ 40°C
    Protection
    Over current protection, Over power protection, Over voltage protection, Short circuit protection
    Connectors
    1 x 24 / 20-Pin Motherboard connector.(550mm)
    1 x 8 / 4-Pin EPS / ATX 12V connector.(550mm)
    1 x 6-Pin PCIE connector.(500mm / 150mm)
    1 x 8 / 6-Pin PCIE connector.(500mm)
    6 x SATA connector.(500mm / 150mm / 150mm)
    6 x 4-Pin Peripheral connector.(500mm / 250mm / 150mm)
    2 x 4-Pin Floppy connector.(500mm / 250mm / 150mm / 150mm)
    Cooling System
    Fan Less thermal solution
    Form factor
    Noise Level
    0 dBA
    Dimension
    150 mm (W) x 86 mm (H) x 160 mm (D)
    5.91" (W) x 3.39" (H) x 6.3" (D)
    Weight
    3.0 kg
    Certification
    80 PLUS Bronze
    Other
    GPU Support list
    Compatible with ATX12V v2.4


    ● Specifications presented on this page contains most recent revisions and may differ from those printed on retail boxes or manuals.


    Dimensions and cable pinout diagram