The ROLINE ProSecure Series - for optimum power protection is a truly state of the art online double conversion UPS, ideal for all essential computer systems and servers. Protects against: power failure, power sag, power surge, under voltage, over voltage, switch transient, line noise, frequency variation, harmonic distortion.\n\n- Cold start function (DC power on)\n- Lightning and surge protection\n- Battery replacement warning\n- Emergency Power Off function\n- Battery remain time display\n- LCD display front panel\n- Power factor correction\n- Support USB communication\n- Multiple language LCD display\n- On line output voltage selected\n- Hot swappable battery by user\n- True on-line technology provides all power protection\n- Pure sine-wave output with less than 3% THD\n- Fully digitized microprocessor controlled\n- Short Circuit and overload protection\n- Advanced battery management (ABM)\n- Automatic battery charge in UPS off mode\n- Automatic diagnostics & battery check\n- RS-232 communication port with monitoring software\n- Network/fax/modem surge protection\n- Extended back up time with battery pack\n- Load segmentation receptacles controllable\n- High efficiency mode selectable\n- Fan speed auto control when loads varies\n- UPS Management Software : Windows NT/ 2k / XP / 7 / 8 /Server 2003 / 2008 / 2012 x86/x64, MAC OS X (Intel) 10.6.x, 10.7.x, 10.8.x Mountain Lion, 10.9.x MavericksMAC OS, LINUX