Provides battery derived AC output during blackouts and brownouts for maximum peace-of-mind. 550VA / 300 watt power handling ability supports a variety of PCs, workstations, and other sensitive electronics. 8 widely spaced outlets accommodate large transformer plugs without blocking outlets. Built-in single line TEL/DSL line surge suppression protects modems, fax machines or cordless phones on a single phone line connection. HID compliant USB port with PowerAlert monitoring software and cabling enables safe unattended system shutdown in the case of extended power failure. Space saving, ultra-compact housing fits almost anywhere. System VA: 550 VA; Backup Time at Full Load: 550 Volts @ 3 minutes; Backup Time at Half Load: 275 Volts @ 9 minutes; Automatic Voltage Regulation (AVR): No.