Premium battery backup & surge protection ensures that your valuable electronics remain safe from dangerous power disturbances. Automatic Voltage Regulation (AVR) maintains healthy voltage conditions without using battery power, saving backup runtime for outages when you need it. Active Power Factor Corrected device compatibility keeps PFC devices from unexpectedly shutting down when switching to backup power during an outage. Network dataline surge protection prevents dangerous surges traveling along datalines from damaging your equipment. Hot-swappable, user-replaceable batteries allow you to easily & quickly exchange them without shutting down, without having to interrupt protection. USB ports deliver convenient mobile-device charging. LCD interface displays easy-to-note information on utility & UPS status. Audible alarms notify you of changing utility power & UPS conditions. Select wide-spaced outlets permit the use of transformer-based plugs. Protection Type: DSL; Fax; Modem; Phone; Power; System VA: 1,500 VA; Backup Time at Half Load: 11.4 min @ 450 W; Lines: 1.