LIAN LI PE-750 750W SFX Active PFC Power Supply Fans: 120mm Fan voltage varies with the ambient temperature and/or output power. Main Connector: 20+4Pin PCI-Express Connector: 2 x 6+2-Pin SATA Power Connector: 3 Power Good Signal: 100~500 ms Efficiency: >89% (92% max) Input Voltage: 100 - 240 V Input Frequency Range: 115V/50Hz – 230V/60Hz