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400w Silverstone ST40NF Nightjar Fanless Power Supply $174.95

In Stock
  Price: $174.95


Home > Quiet Power Supplies > Silverstone ST40NF Nightjar 400w Fanless Power Supply

ST40NF Fanless Power Supply

Nightjar Fanless Power Supply - Top
Nightjar Fanless Power Supply - Side

The Silverstone Nightjar fanless power supplies are a fanless power supply line we are proud to feature. This Silverstonetek ST40NF will provide you with optimal power without overheating your system (a problem common with other fanless power supply lines).

Nightjar Fanless Power Supply

The ST40NF Silverstone Nightjar Series Fanless Power Supply achieves its continuous power output up to 400W. By combining superior server-level components and advanced technical design, the ST40NF power supply has high reliability and efficiency. The ST40NF Fanless 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, the addition of this fanless power supply will certainly be an important upgrade of a truly silent computing environment.

ST40NF Fanless Power Supply Features

  • Fanless power supply, 0 dBA
  • 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 (ideal for fanless operation)
  • Server-level components
  • Support ATX 12V 2.3 & EPS 12V
  • Active PFC

Nightjar Fanless Power Supply

Nightjar Power Supply
Nightjar Fanless Power Supply - Radiator

Nightjar Fanless Power Supply Model No. Silverstone SST-ST40NF
Max. DC Output 400W
Load Range

+3.3V +5V +12V -12V +5VSB
20A 14A 27A 0.5A 2.5A
Peak (Amps)
/ / 31.5A / 3.5A
0A 0A 0.2A 0A 0A
Range (%)
+/-3% +/-3% +/-3% +/-10% +/-5%
Line Reg.(%)
±-1% ±1% ±1% ±1% ±1%
50mV 50mV 120mV 120mV 50mV

Combined +3.3, +5V
130W Max
Combined +12V
324W / 27A
Input Voltage
99V - 264V
Input Frequency Range
47Hz - 63Hz
Active PFC (PF>0.99 at Full Load)
82%-86% at 20%-100% loading
100,000 hours at 25°C , full load
Operating temperature
0 - 40°C

Over Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection

1 x 24 / 20-Pin Motherboard connector (550mm)
1 x 8 / 4-Pin EPS / ATX 12V connector (550mm)
1 x 6-Pin PCIE connector (550mm / 150mm)
1 x 8 / 6-Pin PCIE connector (550mm)
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
Fanless thermal solution
Noise Level
0 dBA
Fanless Power Supply Dimensions
150 mm (W) x 86 mm (H) x 160 mm (D)
2.8 kg


Quantity: Price: $174.95
In Stock


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