Power protection & battery backup for home & office computers & electronics. Provides seamless battery support during brownouts & power failures with enough runtime to save & shutdown connected equipment without data loss. Includes battery supported outlets & additional suppression-only outlets. USB enables optional unattended system shutdown without data loss in the case of extended power failure. PowerAlert software available via free download, includes bundled USB cable. Built-in audible alarm & front panel LEDs offer continuous status information regarding line & battery power operation. System VA: 900 VA; Backup Time at Half Load: 10 min @ 450 W; Automatic Voltage Regulation (AVR): No; Battery Recharge Time: 4 h.