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Silver rectangular ATX power supply with modular cable sockets and 120mm fan grille

Silverstone

Silverstone ST70F-PB 700 W full modular 80 Plus Bronze power supply

SKU CH-96XP-V7QTT MPN ST70F-PB

A 700 W fully modular ATX supply with 80 Plus Bronze efficiency, a single 54 A +12 V rail and a quiet 120 mm fan

  • TypeATX12V / EPS12V
  • Maximum Power700 W
  • FansSingle 120mm silent fan
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle
  • Full modular cabling simplifies builds and airflow
  • 80 PLUS Bronze certified for 82% to 85% efficiency
  • Single +12V rail delivers 54 A for stable GPU power
  • 120 mm silent fan runs quietly at 40 °C operating temperature
  • Active PFC across 90 to 264 V input ensures worldwide compatibility

What this unit delivers

The Silverstone ST70F-PB is a 700 W ATX12V power supply with full modular cabling and 80 PLUS Bronze certification. It provides a single +12 V rail rated at 54 A and active PFC for stable output across a 90–264 V input range.

Who it suits and who it does not

Builders who want to route only the cables they need will appreciate the 100 % modular design and four 6+2-pin PCIe connectors. Systems that require higher wattage or a different efficiency tier should consider other models.

Installation notes

The 140 mm depth fits most chassis and the 120 mm fan keeps noise low at up to 40 °C operating temperature. Ensure the 20+4-pin main connector and eight SATA power plugs match your component layout before powering on.

Highlights

  • Full modular cabling simplifies builds and airflow
  • 80 PLUS Bronze certified for 82% to 85% efficiency
  • Single +12V rail delivers 54 A for stable GPU power
  • 120 mm silent fan runs quietly at 40 °C operating temperature
  • Active PFC across 90 to 264 V input ensures worldwide compatibility

Specifications

BrandSilverStone
ModelST70F-PB
TypeATX12V / EPS12V
Maximum Power700 W
FansSingle 120mm silent fan
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin
SATA Power Connector8
Haswell SupportYes
ModularFull Modular
Efficiency82%~85% at 20% ~ 100% loading
Energy-Efficient80 PLUS BRONZE Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage90 - 264 V
Input Frequency Range47 - 63 Hz
Output+3.3V@22A, +5V@18A, +12V@54A, [email protected] , [email protected]
MTBF>100,000 Hours
Connectors1 x 24 / 20-Pin motherboard connector(550mm)
1 x 8 / 4-Pin EPS / ATX 12V connector(750mm)
4 x 8 / 6-Pin PCIE connector("550mm / 150mm" x 2)
8 x SATA connector("600mm / 150mm / 150mm /150mm" x 2)
3 x 4-Pin Peripheral connector (600mm / 150mm / 150mm)
1 x 4-Pin Floppy connector(600mm / 150mm / 150mm / 150mm)
FeaturesHigh efficiency with 80 PLUS Bronze certification
24/7 continuous power output with 40? operating temperature
100% modular cables
Class-leading single +12V rail
Strict ±3% voltage regulation and low ripple & noise
Silent running 120mm fan with 18dBA
PCI-E 8pin and PCI-E 6pin connectors support
Dimensions3.39" x 5.91" x 5.51"
Weight4.41 lbs.
Shipping weight2.55 kg
Package size312 × 193 × 104 mm

Questions about this item

What motherboard power connectors must my board provide for the 20+4-pin main and EPS12V cables?

Your motherboard needs a 20+4-pin ATX socket and an 8-pin EPS12V socket to accept the full-modular cables included with the 700 W unit.

Will the single +12 V rail rated at 54 A support an older graphics card that uses dual 6-pin PCIe power?

Yes, the four 6+2-pin PCIe cables and the 54 A single rail deliver ample current for legacy dual-6-pin cards without adapter hassles.

How can I verify the 80 PLUS Bronze efficiency of 82 to 85 percent is being met after installation?

Use a wall power meter to compare AC draw against DC load; at typical loads the measured efficiency should fall within the 82 to 85 percent range.

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