The Back-UPS LS Series offers leading-edge power protection for high-performance computer systems. With 7 power outlets (4 battery + surge and 3 surge only), 2 line fax/modem protection and easy-to-use file-saving, auto-shutdown software, the Back-UPS LS provides total protection for computer systems. Automatic Voltage Regulation (AVR) corrects low voltage conditions without draining the battery. Its space-saving, ergonomic shape makes the unit easier to use and manage with outlets conveniently located on top and alarm indicators visible from any angle.