The Back-UPS CS 350VA Tower provide professional-grade power protection for office and home office systems. Battery powered and surge protected power outlets, built-in phone/fax/modem line (DSL compatible) protection, safe system shutdown software with sophisticated power management features and pro-active audio-visual status indicators ensure office systems and their valuable data are protected from dangerous power surges, spikes and blackouts. Serial /USB connectivity gives users more flexibility making installation quicker and easier. Easy access to a hot-swappable, user-replaceable battery also makes servicing the Back-UPS CS 350VA Tower hassle-free. These features along with its classic styling make the Back-UPS CS 350VA Tower a perfect choice for protecting your important office and home office systems.