APC Smart-UPS X 2000VA Rack/Tower LCD 100-127V with Network Card Output Power Capacity: 1800 Watts/1920 VA Control panel: LED status display with On Line, On Battery, Replace Battery and Overload indicators, Multi-function LCD status and control console Interface Port(s): RJ-45 Serial, USB Audible Alarm: Alarm when on battery, distinctive low battery alarm, configurable delays Surge energy rating: 540 Joules Form Factor2U Tower/Rack Mountable