Tripp Lite"s SMART750USB line-interactive UPS system offers automatic voltage regulation surge suppression and long lasting battery support. 750VA / 450 watt power handling ability supports entry-level PCs work workstations point-of-sale equipment small business phone systems audio/video equipment and home theater systems. Internal UPS circuits support entry level PC systems for up to 45 minutes during power failures so that connected equipment can be shut down without data loss. Automatic Voltage Regulation (AVR) circuits regulate brownouts as low as 83 volts back to usable levels without using battery power. Tripp Lite"s SMART750USB offers plete desktop power protection in an attractive black tower configuration. It includes 3 battery-supported outlets for puter monitor and one vital system peripheral as well as 3 additional surge-only outlets for printers and other system accessories that do not require battery support. USB port (USB cable included) enables optional unattended system shutdown without data loss in the case of extended power failure. Built-in dataline protection jacks offer protection of a single dialup phone/DSL line or work Ether connection. Built-in audible alarm and 4 front panel LEDs indicate line power status battery power status battery low/replace status and voltage boost operation.Primary InformationPower Device Type : UPS UPS Technology : line-interactive Voltage Provided : AC 120 V Voltage Required : AC 120 V Circuit Protection : Circuit breaker Power Device / Form Factor : External Dimensions&MiscellaneousWidth : 5.25 Inch Depth : 7.5 Inch Height : 10.75 Inch Compliant Standards : UL1778 (USA) cUL (Canada) Class B (emissions) NOM (Mexico) FCC Part 68 / Industry Canada (Telemunications) Enclosure Color : Black&