Digital Energy IT Series UL Listed UPS 600VA - 2kVA Pure Sinewave Output, Line Interactive Tower and Rack Mounted UPS The GE Digital Energy IT Series Rackmount and Tower UPS provide cost-effective, high quality power protection for a wide range of 19'' Rackmount and Tower mount applications. The IT Series is a line interactive UPS that has pure sine wave output, which prevents downtime and equipment damage due to power outages, voltage fluctuations and transient surges. All GE Digital Energy IT Series UPS's are microprocessor-controlled and equipped with AVR (Automatic Voltage Regulation), making them ideal for server, data storage, networking, telecommunications, and point-of-sale applications.