Line Interactive w/AVR UPS Battery Backup System8 to 11 minutes of backup power for your computer and peripherals total data back-up during power outages and brown-outs. Microprocessor controlled for near instantaneous transfer to battery. Auxiliary phone and network line protection for maximum security. Automatic Voltage Regulation (AVR) maintains consistent power levels during brownouts. Four secure outlets give you excellent power protection for your connected equipment. Rugged design ensures the extra durability you'll want in high-traffic work areas. System VA: 500 VA; Backup Time at Half Load: 8 to 11 Minutes.