Safeguard your computer, monitor & printer with this protective outlet box. Each of the outlets prevents voltage spikes, & four of these outlets supply battery-operated backup power as soon as electrical service is interrupted. Three wide-spaced outlets permit the use of transformer-based plugs. Audible alarms notify you of changing utility power & UPS conditions. The LED status display indicates On Line, On Battery & Building Wiring Fault conditions. Protection Type: Power; System VA: 450 VA; Backup Time at Half Load: 10 min @ 130 W; Automatic Voltage Regulation (AVR): No.