Premium Series UPS Backup power with individual outlet control Line Interactive UPS technology for quiet operation and energy savings Fast 4 millisecond transfer time (1/4 cycle) for no system disruption or lockups Pure Sine Wave technology provides the cleanest power for sensitive devices Automatic Voltage Regulation ensures stable 120VAC output IP addressable model with individual outlet control Load shedding technology for extended protection of critical items Hot swappable battery for easy service with front panel access