Line-interactive tower, uninterruptible power supply (UPS) system offers voltage regulation, surge suppression and long-lasting battery support for personal computers, network workstations and more. Internal UPS circuits support entry-level PCs or individual VCR/DVR components during power failures. Automatic voltage regulation (AVR) circuits continuously regulate brownouts and overvoltages from 92V to 150V back to usable levels, all while maintaining a full battery charge. System includes 10 built-in outlets, five with full battery backup and surge suppression for vital system components and another five with surge-suppression only for accessories not requiring battery support. Built-in USB port and included cable enables optional unattended system shutdown without data loss in case of extended power failure. 1500VA/810W power-handling capacity supports entry-level PCs, home entertainment systems, network workstations and audio/video components.