CYBERPOWER 320SL 320SL Battery Backup System for PC The CyberPower 320SL not only guards against surges, spikes, sags, brownouts and other power abnormalities, but also protects your computer system and valuable data during a power outage Included PowerPanel Software for PC automatically saves and closes open files, shutting down the computer system in an intelligent and orderly manner Allows for user-defined (3) Surge + Battery Backup outlets (3) Surge outlets