The Powerware FERRUPS FE 4300VA Tower UPS delivers the best power quality and unmatched reliability in configurable power management. Offering more than just surge protection and backup power, the FERRUPS FE 4300VA Tower UPS features our patented Ferro resonant UPS technology to deliver "bulletproof" power protection.FERRUPS FE 4300VA Tower UPS offers the ideal level of power protection for banking and security systems, manufacturing process control, servers, and telecommunications equipment.