Line interactive UPS. Classification: VI-SY-333. For PCs and workstations in the office environment. With compensation for voltage fluctuations. 3 battery-protected and interference-suppressed outputs (IEC) and 1 output (IEC) with overvoltage protection. With protection against voltage peaks for the Internet connection (DSL/modem) and telephone line. USB interface. Software suite for Windows. USB cable and 2 IEC consumer connection cables included. Noiseless when running on mains power