High efficiency 80 plus certified ati crossfire amp nvidia sli ready low noise cooling fan system intel form factor atx 12v v231 advanced thermal amp acoustic design ez connector system multi gpu support independent double 12v rails designed specially for dual graphic cards multi core cpu support provides 8 pin 12v cpu support with stable voltage amd support supports the newest athlon 64 cpu by amd active pfc enhances utilization of energy ventilation 1 x 12cm fan full range ac ful