The Powercom KING RM KIN-1500APRM is a microprocessor controlled line-interactive rack-mountable UPS designed to provide high-performance power protection for mission critical environment equipment like file servers, internet servers, network back-up drives, hubs, and telecommunication systems. Under normal conditions, the line-interactive circuit adjusts and filters power fluctuations continuously and automatically, ensuring that all connected devices are operating with constancy and stability. In the event of power failure, the UPS seamlessly transfers to battery power without any interruption. The maintenance-free sealed Lead-Acid battery lets the UPS run for 70-80 minutes, so you have time to close files and protect your data. It also protects your data lines against surges, spikes, lightning, and other power disturbances. The included UPSMON power management software automatically saves and closes open files and shutdowns the PC in an intelligent and orderly fashion, with audible and visible alarm Input Frequency: 50 or 60 Hz+/-10% (auto sensing) Output Voltage: 120V Outlets: 6 Battery Run Time: 70 - 80 minutes Battery Recharge Time: 8 hours (to 90% of full capacity) Alarms: Battery Backup: Slow beeping sound (about 0.47 Hz) Battery Low: Rapid beeping sound (about 1.82Hz) Overload: Continue beeping sound Interface Port: RS-232 Management Software: YES