For the replacement battery please see quick find 2983. The back ups cs provides 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 or 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 hassle free. These features along with its classic styling make the back ups cs a perfect choice for protecting your important office and home office systems. Usb connectivity provides management of the ups via a usb port not available on all models. Serial connectivity provides management of the ups via a serial port. Battery and surge protected outlets back up and protect your hardware and data during power outages, surges and spikes. Surge only outlets protect secondary electronics from surges and spikes without reducing battery power used to run primary electronics during an outage. Automatic self test periodic battery self test ensures early detection of a battery that needs to be replaced. Battery failure notification provides early warning fault analysis on batteries enabling timely preventive maintenance intelligent battery management maximizes battery performance, life, and reliability through intelligent, precision charging. Please note networking components such as switches, routers, ups and wireless devices require that speeds and standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutionsebuyer.com.