A rackmount UPS with line interactive topology, the CyberPower Smart App LCD OR500LCDRM1U provides battery backup (using simulated sine wave output) and surge protection for department servers, workgroup servers, workstations, network devices, and telecom installations without active PFC power supplies. The OR500LCDRM1U uses Automatic Voltage Regulation (AVR) to correct minor power fluctuations without switching to battery power, which extends battery life. AVR is essential in areas where power fluctuations occur frequently. The OR500LCDRM1U comes with a three-year warranty and a $300,000 Connected Equipment Guarantee. Experience higher efficiency with lower energy cost 500 VA load capacity provides sufficient backup during power failures 300 W load capacity - backup power for your valuable electronics Up to 3 minute runtime on full load to preserve critical data from power shortage interruptions