APC Smart-UPS 1500VA UPS Battery Backup with Pure Sine Wave Output Rack-Mount/Tower (SMC1500-2U) 1500VA / 900W Battery Backup Uninterruptible Power Supply (UPS) Pure Sine Wave UPS provides highest degree of compatibility with active PFC power supplies and electronics 6 battery backup and surge protector outlets Rack-Mountable smart UPS power supply Network-grade power supply conditioning protects from damaging surges and disruptive noise. Solid state automatic voltage regulation (AVR) boosts low input voltage and trims high voltage without battery operation. Network manageable via serial, USB or optional ethernet