. Patent-pending operating mode that by passes unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. Reduces or eliminates bulky transformers resulting in lighter units for ease of handlingKey Product Info . High online efficiencyGreen modeHigh frequency designEnergy meterPredictive replace battery dateIntuitive LCD interfaceAuto recognition of external batteriesMultiple switched outlet groupsPure sine wave output on batteryScalable runtimeCold-start capablePlug-and-Play external batteriesRack/Tower convertibleSmartSlotTemperature-compensated battery charging Product Features EPOAttach the device to an Emergency Power Off (EPO) system so that power can be turned off in an emergency situation. High online efficiencyReduces utlility costs generates less heat. Green modePatent-pending operating mode that bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. High frequency designReduces or eliminates bulky transformers resulting in lighter units for ease of handling. Energy meterProvides actual kilowatt hours of usage for energy conscious users. Predictive replace battery dateDynamically provides the month and year when battery replacement is recommended to aide in long term maintenance planning. Intuitive LCD interfaceProvides clear and accurate information in multiple languages with the ability to configure the UPS locally with easy to use navigation keys. What\'s in the box? . CD with softwareDocumentation CDInstallation guideRack Mounting support railsRemovable support feetSmart UPS signalling RS-232 cableUSB cable