Ultra-high efficiency ECO Series UPS System saves energy by automatically powering off unused computer accessories when computer is not in use. UPS system uses less electricity than conventional models. Eco energy saver outlets automatically turn off idle peripherals when your computer is turned off or in standby mode. USB port works with unattended shutdown software and includes HID-compliant USB port, single-line telephone/DSL line surge suppression, space saving right-angle input plug and surge-only outlets. UPS system meets RoHS standards.