SFX 4.0, 850W, SFX form factor, single +12V rails with 70.8A output, Silent 92mm FDB Fan with minimum 0 dBA, semi-fanless switch, efficiency Cybernetices Platinum certification, 12+4Pin 12VHPWR connector, dual CPU 16AWG power connector, 2x 6+2pin PCI-E,SF