The Back-UPS CS offers our best value for protecting your business and office computer systems. It provides battery backup power that allows you to work through short and medium length power outages. It also safeguards your equipment from damaging surges and spikes that travel along your utility and phone lines. Award-winning shutdown software automatically powers down your computer system in the event of an extended power outage. Additional features like audible alarms, LED status indicators, user replaceable battery, push-button circuit breakers and transformer-block spaced outlets make the Back-UPS CS the perfect unit to protect your business\' productivity from the constant threat of power outages and lost data. - 500VA Power Storage- Up to 16minutes of backup power- LED status display and audible alarm- 300 Joules Surge Protection- 2 Year Warranty- Lifetime protection policy for �50,000