Silverstone ST45SF-G SFX Series 450W Modular ActivePFC 80plus Gold PSU

Silverstone ST45SF-G SFX Series 450W Modular ActivePFC 80plus Gold PSU

  • $159.99
Tax included.


Despite being half the size of a regular ATX power supply, the ST45SF-G can still produce continuous power output of 450W. Its 80 PLUS Gold level efficiency is a great leap from the previous SFX best of 80 PLUS Bronze and the full modular cables is also the first of its kind for this form factor. 

To enable users to easily take advantage of this excellent SFX power supply, an adapter is included to convert ST45SF-G to mount in any ATX case in addition to ones that fit only SFX. For SFF users and for SilverStone, the ST45SF-G is more than just an upgrade, it is an important milestone for DIY desktop computer.


24 Month Return to Base Warranty


  • Support standard SFX form factor and ATX via included bracket
  • 80 PLUS Gold level efficiency (87%~90% efficiency at 20%~100% loading)
  • 100% modular cables
  • 450W continuous power output at 40℃ operating temperature rated for 24/7 operation
  • Class-leading single +12V rail with 37A
  • Strict ±3% voltage regulation and low ripple & noise
  • Silent running 80mm fan with 18dBA minimum
  • Single PCI-E 8pin and dual PCI-E 6pin connectors support
  • Active PFC


Form factor SFX
Certification 80 PLUS Gold
Max. DC Output 450W
Protection Over current protection
Over power protection
Over voltage protection
Under voltage protection
Short circuit protection
No Load Operation
Over temperature protection
Connectors 1x 24/20-Pin motherboard connector (300mm)
1x 8/4-Pin EPS/ATX 12V connector (400mm)
1x 8/6-Pin PCIE connector (400mm)
1x 6-Pin PCIE connector (400mm/150mm)
3x SATA connector (300mm/200mm/100mm)
2x 4-Pin Peripheral connector (300mm/200mm) 
1x 4-Pin Floppy connector (300mm/200mm/200mm)
Cooling System Single 80mm silent fan
Noise Level 18dBA minimum
Dimensions (mm) 125 (w) x 100 (d) x 63.5 (h)
Weight 1.45 Kg
Brackets Includes SFX to ATX bracket for use in ATX case

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