Tripp Lite 550VA UPS Battery Backup, 300W Eco Green, USB, RJ11, 8 Outlets (ECO550UPS) Standby Battery Back Up: 550 VA 300W 120V ultra-compact desktop Uninterruptable Power Supply (UPS) with energy-saving ECO outlets ECO option turns off set of three outlets when the computer is not in use NEMA 5-15P input plug and 8 NEMA 5-15R outlets (4 battery supported, 4 surge-only) USB, TEL/DSL protection, Wall mountable, Surge-only outlets & ENERGY STAR qualified 3-Year Limited Warranty and $100,000 Ultimate Lifetime Insurance for connected equipment