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SilverStone Attis 550x 550W 80+ Bronze ATX PCIe 5.0 Fixed Cable Power Supply (SST-AT550-BF)

550W ATX PSU in black, 80 PLUS Bronze, 85‑88% efficiency, active PFC (PF > 0.9). 305 W/L power density, single 120 mm bearing fan (≥18 dBA). Includes 24‑pin, EPS, PCIe, SATA & peripheral connectors, full OCP/OVP/UVP/OTP protection.

SilverStone Attis 550x 550W 80+ Bronze ATX PCIe 5.0 Fixed Cable Power Supply (SST-AT550-BF)
  • Power-Supply-PSU-SilverStone-Attis-550x-550W-80-Bronze-ATX-PCIe-5-0-Fixed-Cable-Power-Supply-SST-AT550-BF-10
  • Power-Supply-PSU-SilverStone-Attis-550x-550W-80-Bronze-ATX-PCIe-5-0-Fixed-Cable-Power-Supply-SST-AT550-BF-2
  • Power-Supply-PSU-SilverStone-Attis-550x-550W-80-Bronze-ATX-PCIe-5-0-Fixed-Cable-Power-Supply-SST-AT550-BF-3
  • Power-Supply-PSU-SilverStone-Attis-550x-550W-80-Bronze-ATX-PCIe-5-0-Fixed-Cable-Power-Supply-SST-AT550-BF-4
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SPECIFICATIONS:

Color

Black (lead-free paint)

Max. DC Output

550W   

Power density

305 W/L              

Combined +3.3V & +5V

100W   

Combined +12V

550W   

Max. Output Current

180 ~ 264 Vrms               

Input Voltage

47Hz ~ 63Hz     

PFC

Active PFC（PF>0.9 at full load）         

Efficiency

85% ~ 88% (at 20% ~ 100% loading)    

MTBF

100,000 hours 

Operating temperature

0°C ~ 40°C         

Protection

Over Current Protection              

Over Power Protection

Over Voltage Protection              

Short Circuit Protection              

Under Voltage Protection           

Over Temperature Protection   

Connectors

1 x 24/20 Pin motherboard connector 

2 x 8/4-Pin EPS / ATX 12V connectors  

2 x 8 / 6-Pin PCIe connectors   

5 x SATA connectors     

3 x 4-Pin Peripheral connectors              

Cooling System

Single 120mm Bearing fan         

Noise Level

18 dBA min.      

Certification

80 PLUS Bronze 230V  

Form factor

ATX        

Dimension

150mm (W) x 86mm (H) x 140mm (D)  

 


  • Product Name:
    SilverStone Attis 550x 550W 80+ Bronze ATX PCIe 5.0 Fixed Cable Power Supply (SST-AT550-BF)
  • Model Number:
    SST-AT550-BF
  • Brand:
    SilverStone SilverStone
  • Warranty Period:
    3 Year

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