Power supply output 400 W 80plus certification 80 PLUS Platinum (>94%) PMBus support PSU single: no, redundant PSU: Yes, Ver.1.2 Power supply redundancy Slot for redundant power supply unit CE voltage type AC/DC CE voltage range 100-240Vac / 200-240Vdc CE power consumption range 3-6A / 3.2-3.A CE frequency range 50 - 60 Hz