PW5115 LINEINT 750VA TWR 500W 120V 50/60HZ ROHS The Powerware 5115 UPS offers excellent backup power protection and power quality management for PCs, small-office-home-office (SOHO) equipment, NT workstations, and small internet-working devices. Delivering basic surge protection and backup power, the Powerware 5115 additionally offers the best UPS power protection against five of the nine common power quality problems.