CyberPowerPR1000RT2UN Smart App Sinewave UPS System, 1000VA/1000W, 8 Outlets, 2U Rack/Tower, AVR, RMCARD205 Pre-Installed

Works well for our single Dell server to survive short power outages without shutting down. The warranty and equipment protection guarantees give some peace of mind, and the PowerPanel software available to gracefully shut down servers when they are running on battery power.