SilverStone Viva 550W 80+ Bronze ATX Power Suply (SST-VA550-B)

Max. DC Output

550W   

Power density

305W per liter   

Load Range

Output

Max.(Amps)

Peak (Amps)

Min.(Amps)

Range (%)

Line   Reg.(%)

Ripple(mVp-p)

+3.3V

20A

/

2.0A

±5%

±1%

50mV

+5V

20A

/

2.0A

±5%

±1%

50mV

+12V

45A

/

7.56A

±5%

±1%

120mV

+5VSB

3.0A

/

0.41A

±5%

±1%

50mV

-12V

0.3A

/

0.05A

±10%

±1%

120mV

Combined +3.3V & +5V

110W   

Combined +12V

540W   

Input Voltage

100 ~ 264 Vrms

Input Frequency Range

47Hz ~ 63Hz      

PFC

Active PFC（PF>0.9 at full load）             

Efficiency

82% ~ 85% (at 20% ~ 100% loading)        

MTBF

100,000 hours 

Operating temperature

0°C ~ 40°C          

Protection

Over power protection  

Over voltage protection

Short circuit protection 

Connectors

2 x 4-Pin + 4-Pin ATX 12V connector (650mm / 150mm) 

2 x 8 / 6-Pin PCIe connector (500mm / 150mm)

6 x SATA connector ("500mm / 150mm / 150mm" x 2)    

3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)        

1 x 24 / 20-Pin motherboard connector (500mm)             

Cooling System

Single 120mm silent fan

Noise Level

18dBA minimum             

Certification

80 PLUS Bronze

Form factor

ATX (PS2)            

Dimension

150 mm (W) x 86 mm (H) x 140 mm (D) 

Weight

1.49 Kg

Other

Compatible with ATX12V v2.4