. APC Back-UPS BX series is a cost-effective power protection solution for home & home office environments. The series comprehensive VA range with premium features further enables single UPS capabilities. Automatic Voltage Regulation (AVR) Automatically steps up low voltage & steps down high voltage to levels that are suitable for your equipment. Dataline surge protection Provides protection of connected equipment from power surges on the data lines. Power Chute Personal Edition OS Compatibility This software supports numerous operating systems & processors. USB (Universal Serial Bus) connectivity USB compatibility & connectivity ensures quick & easy installation of the free Power Chute Personal Edition Software..