850VA/510W Intelligent LCD Battery Backup Uninterruptible Power Supply (UPS) System 9 NEMA 5 15R OUTLETS: (5) Battery Backup & Surge Protected Outlets, (4) 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