• Output power capacity: 550VA/300W• 8 outlets—4 battery- & surge-protected outlets & 4 surge-only outlets• Workstation-optimized features include USB port, single-line TEL/DSL surge suppression• Built-in Automatic Voltage Regulation boosts brownouts as low as 83 & reduces over-voltages up to 147 back to usable 120V nominal levels • Built-in, single-line Tel/DSL line surge suppression protects modem, fax machine or cordless phone• USB port, PowerAlert software & cabling offer safe unattended shutdown without data loss during extended outages• Hot swappable user battery replacement supported via battery access door • Space saving, ultra-compact housing fits almost anywhere• Keyhole mounting flanges enable secure wall-mount installation• 2-year product warranty & $100,000 ultimate lifetime insurance