CyberPower  CP1500AVRLCD Intelligent LCD UPS System, 1500VA/900W, 12 Outlets, AVR, Mini-Tower 1500VA/900W Intelligent LCD Battery Backup Uninterruptible Power Supply (UPS) System. Frequency - 60Hz  3Hz 12 NEMA 5-15R OUTLETS: (6) Battery Backup & Surge Protected Outlets, (6) Surge Protected Outlets safeguard desktop computers, workstations, networking devices and home entertainment equipment MULTIFUNCTION LCD PANEL: Displays immediate, detailed information on battery and power conditions, including: estimated runtime, battery capacity, load capacity, etc AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power, thereby extending the life of the battery 3-YEAR WARRANTY  INCLUDING THE BATTERIES, $500,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download).Frequency:60Hz  3Hz