Stontronics gkf 320 12ii 12v dc 320w enclosed power supply unit stontronics gkf 320 12ii p the stontronics gkf 320 12ii is a 12v dc 320w enclosed power supply unit with pfc for dc power requirements the gkf 320 12ii provides a single output power solution for industrial control and automation applications which in the case of the gkf 320 12ii is 12v p p the power supply has a universal full range input of ac of 85 to 264v ac and 120v to 370v dc p stontronics gkf 320 12ii 12v dc 320