This device is designed to protect computers, peripherals, and home entertainment equipment from power failures, voltage spikes, sags, surges, and brownouts. It uses an Automatic Voltage Regulator (AVR) to stabilize the mains power supply and includes EMI filters. In the event of a total mains failure, it provides backup power via an inverter with a pseudo-sinewave output, allowing enough runtime for a safe system shutdown using compatible software. The 2000VA model has a capacity of 2000 VA (1200 W) and typically includes USB and RS232 communication ports.