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Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS

Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS - 1
Actual product may not be exactly as shown.
Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS - 42845_l.jpg Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS - 42845_1.jpg Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS - 42845_2.jpg Silverstone Nightjar ST40NF 400W ATX12V 20/24PIN Fanless Power Supply Active PFC 80PLUS - 42845_3.jpg Customer Photos (0)
Silverstone Technology
Reg. Price: $174.48  CAD
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   Shipping Weight:   8.8 lbs
   Part #: ST40NF

Features    [ Edit | History ]
As a step-up from the venerable ST30NF, SilverStone’s first fan-less power supply, the newer Nightjar series ST40NF achieves its continuous power output up to 400W. This is the power level that has become the mainstream application for a new generation of silent computers. By again combining superior server-level components and advanced technical design, the ST40NF has high reliability and efficiency. It 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, getting this power supply will certainly be one of the most important upgrade in completing a truly silent computing environment.

Special Feature
Fan-less thermal solution, 0 dBA acoustics.
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
Server-level components
Support ATX 12V 2.3 & EPS 12V
Active PFC

Specifications    [ Edit | History ]
 Model No.
 Max. DC Output
Load Range
+3.3V +5V +12V1 +12V2 +12V3 +12V4 +5VSB -12V -5V
20A 14A 27A / / / 2.5A 0.5A /
Peak (Amps)
/ / 31.5A / / / 3.5A / /
0A 0A 0.2A / / / 0A 0A /
Range (%)
+/-3% +/-3% +/-3% / / / +/-5% +/-10% /
Line Reg.(%)
+/-1% +/-1% +/-1% / / / +/-1% +/-1% /
50mV 50mV 120mV / / / 50mV 120mV /
 combined +3.3, +5V
130W Max
 combined +12V
 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 (at 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.(500mm / 150mm)
1 x 8 / 6-Pin PCIE connector.(500mm)
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
Fan Less thermal solution
 Noise Level
0 dBA
150 mm (W) x 86 mm (H) x 160 mm (D)
3.0 kg
80 PLUS Bronze

Silverstone Technology ST40NF Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Silverstone Technology ST40NF reviews.
Experience: 10 Days
 Verified Owner
Dead quiet. Fanless. Zero DB acoustics.
400 W. 100 W more than the previous model.
Cables layout in net wrapping.
80 PLUS Bronze certified.
Plenty of cables.
Really solid.
Price. I want quality though. In my case I don't mind paying for quality as I know it's going to last longer.
Lower wattage power supply. 400 W is enough for my needs. If I need more then I would be a second one for a total of 800 W.
Cables comes wrapped in nets making it easier to install.
Plenty of cables, including PCI-E (not always found on lower wattage, passive PSUs).
Solid build quality is evident.
High-end design, based on a LLC resonant primary and DC-DC converters on the secondary.
Highly overspec’ed components. The quality shows again.

This review was modfied by poster @ 03-15-10 05:58 PM

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Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: Shining review from DreamWare Computers!
Posted by: Steve_B @04/14/10
Submit a review link   |   Latest 30 reviews
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