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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.
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
Support ATX 12V 2.3 & EPS 12V
| Model No. || |
| Max. DC Output || |
| Load Range |
|+3.3V ||+5V ||+12V1 ||+12V2 ||+12V3 ||+12V4 ||+5VSB ||-12V ||-5V |
|20A ||14A ||27A ||/ ||/ ||/ ||2.5A ||0.5A ||/ |
|/ ||/ ||31.5A ||/ ||/ ||/ ||3.5A ||/ ||/ |
|0A ||0A ||0.2A ||/ ||/ ||/ ||0A ||0A ||/ |
|+/-3% ||+/-3% ||+/-3% ||/ ||/ ||/ ||+/-5% ||+/-10% ||/ |
|+/-1% ||+/-1% ||+/-1% ||/ ||/ ||/ ||+/-1% ||+/-1% ||/ |
|50mV ||50mV ||120mV ||/ ||/ ||/ ||50mV ||120mV ||/ |
| combined +3.3, +5V || |
| combined +12V || |
| Input Voltage || |
99V ~ 264V
| Input Frequency Range || |
47Hz ~ 63Hz
| PFC || |
Active PFC (PF>0.99 at full load)
| Efficiency || |
82%~86% at 20%~100% loading
| MTBF || |
100,000 hours at 25°C (at full load)
| Operating temperature || |
0 ~ 40°C
| Protection || |
Over current protection, Over power protection, Over voltage protection, Short circuit protection
| Connectors || |
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)
| Color || |
| Cooling System || |
Fan Less thermal solution
| Noise Level || |
| Dimension || |
150 mm (W) x 86 mm (H) x 160 mm (D)
| Weight || |
| Certification || |
80 PLUS Bronze
| Other || |
Silverstone Technology ST40NF Customer Reviews
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5 star: (1)
4 star: (0)
3 star: (0)
2 star: (0)
1 star: (0)
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.
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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