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- By David_W @Aug 14, 2011
The fanless Nightjar series power supplies are long favorites for professionals and enthusiasts alike that require noiseless power solution with no moving parts. With increasing power demands required from modern computers, SilverStone engineers have once again created another fanless power supply with leading output level in the ST50NF. With 500W of continuous rating, near 80 PLUS Silver efficiency, ±3% voltage regulation, single +12V rail, multiple PCI-E connectors, and full host of safety features, the ST50NF is a great choice for mission-critical systems that need to operate in noiseless or dusty environments.
Fan-less thermal solution, 0 dBA acoustics
Efficiency 84%~88% at 20%~100% loading
500W continuous power output
Strict ±3% voltage regulation
PCI-E 8pin and PCI-E 6pin connector support
Powerful class-leading single +12V rail
Aluminum construction
Server-level components
Support ATX 12V 2.3 & EPS 12V
Specifications
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Edit |
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- by David_W @Aug 14, 2011
Model No.
SST-ST50NF
Max. DC Output
500W
Load Range
+3.3V
+5V
+12V1
+12V2
+12V3
+12V4
+5VSB
-12V
-5V
Max.(Amps)
18A
18A
38A
/
/
/
2.5A
0.5A
/
Peak (Amps)
/
/
/
/
/
/
/
/
/
Min.(Amps)
0.5A
0.5A
0.1A
/
/
/
0.1A
0.1A
/
Range (%)
±3%
±3%
±3%
/
/
/
±5%
±10%
/
Line Reg.(%)
±1%
±1%
±1%
/
/
/
±1%
±1%
/
Ripple(mVp-p)
50mV
50mV
120mV
/
/
/
50mV
120mV
/
combined +3.3, +5V
120W
combined +12V
456W / 38A
Input Voltage
99V ~ 264V
Input Frequency Range
47Hz ~ 63Hz
PFC
Active PFC (PF>0.99 at full load)
Efficiency
84%~88% at 20%~100% loading
MTBF
50,000 hours at 25°C (at full load)
Operating temperature
0 ~ 45°C
Protection
Over Current Protection, Over Power Protection, Over Voltage Protection, Over Temperature 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 8/6-Pin PCIE connector (550mm) 1 x 6-Pin PCIE connector (550mm / 150mm) 6 x SATA connector (500mm / 150mm / 150mm) 6 x 4-Pin Peripheral connector (500mm / 150mm / 150mm) 2 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
Color
Silver
Cooling System
Fan Less thermal solution
Noise Level
0 dBA
Dimension
150 mm (W) x 86 mm (H) x 160 mm (D)
Weight
3.5 kg
Certification
80 PLUS Silver (minimum 80 PLUS Bronze guaranteed)
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Messages about Silverstone Nightjar ST50NF 500W ATX12V 20/24PIN Fanless Power Supply Active PFC 80 Plus Silver
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the silent starts take a bit to get use to. Does not put off as much heat as I though. hard to swallow big price for medium power.They say silence in golden, after using power supply , I am a beliver that the extra $ spent for silence was worth it.
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