Eaton 9E 1000i Online 1000VA UPS (9E1000i) - Form Factor: Tower, Secondary Frequency - Max: 60 Hz, Output Waveform: Sine wave, Input Voltage - Max: 300 V, Output Voltage - Max: 240 V, Number Of Outputs C13: x 4, Communication: USB port (HID compliant), Serial port (RS232), Communication slot, User Interface: LCD Display, Software Compatibility: Eaton Intelligent Power Manager, Eaton Intelligent Power Protector