Tripp Lite AVRX550U 550VA 300W UPS International Battery Back Up AVR 230V RJ11 C13 550VA ultra-compact 230V line interactive UPS Corrects brownouts and overvoltages from 159V to 282V 3 UPS battery supported outlets, 3 surge-only outlets USB port, TEL/DSL protection C14 inlet and 6 C13 outlets