The Eaton 9PX5KiRTN 9PX 3U Desktop/Rackmount UPS Uninterruptible Power Supply delivers 28% more power than most UPSs in its class with a 0.9 power factor, and powers more servers than other UPSs with equivalent VA ratings and lower power factors. With up to 95% efficiency in online double-conversion mode and 98% in high-efficiency mode the 9PX provides the highest efficiency level in its class to reduce energy and cooling costs. Additionally, the Eaton 9PX5KiRTN 9PX constantly monitors power conditions and regulates voltage and frequency.