The latest addition from Cooler Master is a range of 550W, 650W and 750W power supplies that specifically targets upper mid-range to high-end gaming systems, the Cooler Master GX Series. The Cooler Master GX range of power supplies feature a single powerful +12V rail that has been designed to deliver more than ample power to dual graphics card systems, no matter if you use SLI or CrossFireX. 

       
• Compliance with the latest Intel standard ATX 12V V 2.31
       
• Single +12V rail for the most demanding SLI configurations
       
• High efficiency design that meets 80 Plus requirements (85% typical)
       
• Ultra-silent operation with intelligent 120mm fan speed control
       
• Multiple protection design (OVP / UVP / OPP / OTP / SCP)
       
• High reliability (MTBF>100,000 hours)
       
• Double Layer EMI Filter restrains noise and injury to end-user
       
• Huge bulk capacitor for hold up time >17ms at full loading 
       
• Integrating Active PFC with PWM combo controller not only make PFC higher than 0.99, but also raises efficiency
       
• Efficient transformer for reducing 5Vsb power loss when the system is at turn-off and sleep modes
       
• Five-year warranty
     

  Specifications

• Type Intel Form Factor ATX 12V V2.31
• Dimension (W / H / D) 150 x 140 x 86 mm , 5.9 x 5.5 x 3.4 inch
• Input Voltage 90-264Vac (Auto Range)
• Input Current 7A@115Vac, 5@230Vac
• Input Frequency Range 47-63Hz
• PFC Active PFC (>0.9)
• Power Good Signal 100~500ms
• Hold Up Time >17ms
• Efficiency 85% typical
• MTBF >100,000 hours
• Protection OVP / UVP / OPP / OTP / SCP
• Output Capacity 550W
• Max. Output Capacity 660W
• Operation Temperature 0~40°C (Nominal Input Voltage)
• Regulatory TUV / CE / UL / FCC / BSMI / GOST / C-tick / CCC / KCC
• Fan 120mm
• Certifications 80 PLUS
• Connector 20+4 Pin MB x 1
  4+4 Pin CPU 12V x 1
  6+2 Pin PCI x 2
  SATA x 6
  4 Pin Peripherial x 3
  4 Pin Floppy x 1