Extendable & Hot swap batteries (Rails not included) With pure sine wave output, the Commander Rackmount Tower guarantees compatibility for all kinds of loads. It’s perfect power protection for versatile applications such as networking, telecom and other mission-critical applications. The ECO mode function allows cost-effective operation of UPS Systems as high as 98%. In this operation mode, load is supplied by the mains. In the event of a mains failure, the inverter takes over the load and provides supply continuity to the connected systems. Features: Pure sine wave output Rack/Tower design Built-in boost and buck AVR Output power factor 0.9 Programmable power management outlets ECO mode operation for energy saving (ECO) Emergency Power Off Function (EPO) Hot-swappable battery design Long-run models available Multiple communication available 2 Year Warranty Multiple communication available: USB port RS-232 port SNMP slot (option) AS400 card (option) PowerShield NetGuard® software included.