The SmartPro Line-Interactive Digital UPS System from Tripp Lite offers voltage regulation, surge suppression and long-lasting battery support for personal computers, network workstations, home entertainment systems and media centers. The internal UPS circuits support entry-level PCs or individual VCR/DVR components during power failures. It also prevents data loss, viewing interruptions, lost recordings and loss of component programming. The Automatic Voltage Regulation (AVR) circuits regulate brownouts and overvoltages from 75 V to 147 V back to usable levels without using battery power. It offers complete power protection with support for upright tower, flat shelfmount or 2U rackmount installation in an attractive all-black cabinet design. The UPS includes 8 battery-supported outlets. The built-in USB and DB9 serial port enables optional unattended system shutdown without data loss in case of extended power failure while the HID-compliant USB interface enables full integration with built-in power management. The UPS also features single-line RJ-45 jacks that offer protection for equipment with single-line tel/DSL or network Ethernet connection and a built-in audible alarm and a large LCD front panel voltage display to indicate line power status, battery power status, battery low/replace status and voltage boost operation. The 1500 VA / 900 W power-handling capacity supports entry-level PCs, home entertainment systems, network workstations and audio/video components.