The Tripp Lite SMART1500LCDT 1500VA 900W UPS Battery Back Up, LCD 120V, Line-Interactive, Tower, 8 Outlets, Tel/DSL Protection, USB, DB9 Serial, EMI/RFI Filtering (SMART1500LCDT) is a 1500VA / 900W line-interactive UPS that provides battery backup power and surge protection for electronics, computers, networking equipment and other devices during power outages and fluctuations. It features 8 total outlets (6 battery backup & surge, 2 surge only), an LCD display panel, AVR to regulate voltage, tel/DSL protection, USB port, DB9 serial port, EMI/RFI noise filtering and a tower form factor. This UPS unit can provide up to 60 minutes of runtime at half load.