The APC BX850M 850VA Tower Compact UPS is a reliable and efficient battery backup system designed to protect your computer, networking equipment, and other electronics from unexpected power outages. With a voltage compatibility of 850 VA and a maximum wattage of 510W, it provides surge energy capacity of 1103j to keep your devices up and running during a power failure. This model features 8 outlets, an audible alarm, and noise filtering capabilities to ensure a stable and secure power supply for your critical systems.