Thermaltake ToughPower 550W
 

The Thermaltake ToughPower offers 550 watts to satisfy all your power needs. Two 6-pin PCI-Express connectors are available for SLI or Crossfire. On top of that you have four SATA and eight 5.25" connector. Two independent 12V rails can supply a total of 38A. During our testing we saw impressive voltage stability and very small ripple.

Link:
http://www.techpowerup.com/reviews/T.../ToughPower550