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Compact silver SFX power supply with 92mm fan and modular cables visible

Silverstone

Silverstone SST-ST45SF-V3 450W SFX power supply

SKU CH-RG27-GX6BE MPN SST-ST45SF-V3

A compact SFX unit delivering 450 W of continuous power with 80 PLUS Bronze efficiency and a quiet 92 mm fan

  • TypeSFX
  • Maximum Power450 W
  • FansSingle 92mm silent fan
  • PFCActive
  • +12V RailsSingle
  • PCI-Express Connector1 x 6+2-Pin
  • 450 W continuous power at 40 °C for reliable 24/7 operation
  • 80 PLUS Bronze efficiency between 82 % and 85 % cuts waste heat
  • Single +12 V rail delivers 36 A for stable GPU loads
  • Compact 100 mm SFX design fits small cases with ATX bracket included
  • 92 mm silent fan keeps acoustics low under load

SFX 450 W power supply

The Silverstone SST-ST45SF-V3 delivers 450 W of continuous power in the standard SFX form factor. An included bracket allows installation in ATX cases. It is built for small-form-factor systems that need reliable 24/7 operation at up to 40 ambient temperature.

80 PLUS Bronze single +12 V rail

The unit carries 80 PLUS Bronze certification with 82 to 85 percent efficiency across 20 to 100 percent load. A single +12 V rail supplies up to 36 A, simplifying power distribution for the CPU and graphics card. Active PFC and a wide 90 to 264 V input range ensure stable operation worldwide.

Compact 100 mm depth with essential connectors

At 100 mm long the supply fits tight SFX chassis while the 92 mm silent fan keeps noise low. Cabling includes one 24/20-pin motherboard connector, one 8/4-pin EPS connector, one 8/6-pin and one 6-pin PCIe connector, three SATA connectors, two peripheral connectors and a floppy connector. Over-voltage protection and a 100000-hour MTBF rating back long-term reliability.

Points forts

  • 450 W continuous power at 40 °C for reliable 24/7 operation
  • 80 PLUS Bronze efficiency between 82 % and 85 % cuts waste heat
  • Single +12 V rail delivers 36 A for stable GPU loads
  • Compact 100 mm SFX design fits small cases with ATX bracket included
  • 92 mm silent fan keeps acoustics low under load

Caractéristiques

BrandSilverStone
SeriesSFX Series
ModelSST-ST45SF-V3
TypeSFX
Maximum Power450 W
FansSingle 92mm silent fan
PFCActive
+12V RailsSingle
PCI-Express Connector1 x 6+2-Pin
SATA Power Connector3
Max PSU Length100 mm
Efficiency82% - 85%
Energy-Efficient80 PLUS BRONZE Certified
Over Voltage ProtectionYes
Input Voltage90 - 264 V
Input Frequency Range47 - 63 Hz
Output+3.3V@20A, +5V@20A, [email protected] , +5VSB@3A, [email protected]
MTBF>100,000 Hours
Connectors1 x 24 / 20-Pin motherboard connector
1 x 8 / 4-Pin EPS / ATX 12V connector
1 x 8/6-Pin PCIE connector
1 x 6-Pin PCIE connector
3 x SATA connector
2 x 4-Pin Peripheral connector
1 x 4-Pin Floppy connector
FeaturesSupports standard SFX form factor and ATX via included bracket
450W continuous power output at 40? temperature rated for 24/7 operation
80 PLUS Bronze level efficiency (82% ~ 85% efficiency at 20% ~ 100% loading)
Class-leading single +12V rail with 36A
Silent running 92mm fan
Single PCI-E 8pin and dual PCI-E 6pin connectors support
Active PFC
Over current protection, Over voltage protection, Short circuit protection, Over Power Protection, Under Voltage Protection
Dimensions2.50" x 4.92" x 3.94"
Weight2.43 lbs.
Poids d’expédition1.60 kg
Dimensions du colis234 × 178 × 104 mm

Questions sur cet article

Will the 450 W continuous rating hold up inside a compact case running at 40 °C?

Yes, the unit is rated for 450 W continuous output at 40 °C ambient, so it delivers full power even in warm small-form-factor builds.

What does the 80 PLUS Bronze badge actually limit in daily use?

It guarantees 82 % to 85 % efficiency from 20 % to 100 % load, meaning less waste heat and lower electricity draw across typical workloads.

Does the 100 mm length and included bracket let me mount it in a standard ATX chassis?

The 100 mm SFX body fits SFX slots natively, and the supplied bracket adapts it to ATX mounting holes without modification.

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