APC Back UPS RS LCD 550 Master Control

Reduces or eliminates bulky transformers resulting in lighter units for ease of handling.Patent-pending operating mode that bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. Automatically cuts power to idle equipment to conserve electricity.8 outlet models offer dedicated space to accommodate wide transformer blocks without covering adjoining outlets and 2 always on outlets. You can plug 8 power cords including 3 transformers at the same time. In case you have equipment that has to stay on all the time, such as fax machine, you can plug it in always on outlets. The equipment will be protected and will have power supply even when the unit is switched off.