APC C 1500VA RM 2U 230V LCD Smart-UPS with SmartConnect (SMC1500I-2UC) - Max Configurable Power (Watts): 900 Watts / 1.5kVA, Input frequency: 50/60 Hz +/- 3 Hz Auto-sensing, Output Frequency (sync to mains): 50/60 Hz +/- 3 Hz Sync to mains, Transfer Time: 6 ms typical : 10 ms maximum, Number of Power Cords: x 1, Interface Port(s): RJ-45 Serial, USB, Expected Battery Life: 4 - 6 years, Mountable