The Forza SL-751 provides protection for your home or office IT systems. The unit has a built in automatic voltage regulator (AVR). The AVR automatically corrects the highs and lows of voltage fluctuations, assuring that your equipment receives clean and steady power. The SL-751 also comes with a monitoring system, WInpower, that lets the user administer and monitor the UPS via a USB connection (cable included). This model has 6 outlets that have 3-in-1 functions: battery back up, AVR, and surge protection. It also protects and filters your fax/modem line from spikes and noises through the RJ-11 jack.