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Silverstone ST45SF-G Modular 450W SFX Power Supply Unit

Silverstone ST45SF-G 450W SFX Modular PSU
£94.80 inc. VAT
Available for pre-order
Lead time usually 1-3 days

The Silverstone ST45SF-G 450W SFX Power Supply Unit is a 450W SFX, upgrade-worthy, small form factor PSU. Half the size of a regular ATX power supply, the ST45SF-G can still produce a continuous power output of 450W. Its powerful single +12V rail design makes it perfect for future high-end component upgrade. Its 80 PLUS Gold level efficiency highlights its dominance over the previous SFX best (of 80 PLUS Bronze) and the full modular cables are also the first of its kind for this form factor. The unit supports a silent running 80mm fan with 18dBA minimum and Single PCI-E 8pin and dual PCI-E 6pin connectors. It supports standard SFX form factor and ATX via the included bracket.

An adaptor is included to convert ST45SF-Gto mount in any ATX case in addition to ones that fit only SFX.


  • 1 x 24 / 20-Pin motherboard connector(300mm)
  • 1 x 8 / 4-Pin EPS / ATX 12V connector(400mm)
  • 1 x 8/6-Pin PCIE connector(400mm)
  • 1 x 6-Pin PCIE connector(400mm / 150mm)
  • 3 x SATA connector(300mm / 200mm / 100mm)
  • 2 x 4-Pin Peripheral connector (300mm / 200mm)
  • 1 x 4-Pin Floppy connector(300mm / 200mm / 200mm)

Protection: Over current protection; Over power protection; Over voltage protection; Over Temperature Protection; Under voltage protection; Short circuit protection; No Load Operation.

Other: Includes SFX to ATX bracket for use in ATX cases; Compatible with ATX12V v2.4; 100% modular cable design for easy removal in a case with cable routed and tied down.

Warranty: The ST45SF-G comes with a 2 year manufacturer's warranty.

Brand Silverstone
Model ST45SF-G 450W SFX PSU
Form Factor SFX
Colour Black
Power Supply
Connector Type UK C13 Power Cable
Output Power 450W
Input Voltage 3, 5, 12V
Connectors24-pin ATX 300mm
8/4-pin ATX 12V 400mm
ATA HDD Power 300mm
ATA HDD Power 200mm
Floppy Power 300mm
SATA Power 300mm
SATA Power 500mm
SATA Power 600mm
6-pin PCIE 400mm
6/8-pin PCIE 400mm
Operating Temperature 0℃ - 50℃
TypeFan Cooled
Fan Type 1x 80mm
W x D x H 115 x 86 x 140 mm
Volume 1.38 litres
Manufacturer's Warranty
Duration Manufacturer's Limited 24 months
  • 80 PLUS Gold level efficiency (87%-90% efficiency at 20%-100% loading)
  • Silent running 80mm fan with 18dBA minimum
  • Single PCI-E 8pin and dual PCI-E 6pin connectors support
  • Active PFC
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