The APC Back-UPS Pro offers guaranteed power protection for high performance computer systems, routers/modems, external storage devices, game consoles and other electronics in your home or business. The Back-UPS Pro supply abundant battery backup during outages and stabilize unsafe voltage levels. They provide protection from damaging surges and spikes, and allow the use of management software so you get the most out of your unit. Premium features of this family include Automatic Voltage Regulation (AVR), an LCD display, and energy saving functions that reduce electricity use. Together with the rest of the Back-UPS Pro's standard features, they are the perfect choice to protect your data and keep your system available.