The APC Battery Backup Power Supply BK500 is a reliable and efficient desktop UPS designed to provide power protection for electronics and PCs. With a voltage compatibility of 120V and 500VA, this white power supply features 6 outlets, surge protection, and an audible alarm to alert users in case of power interruptions. The APC Back-UPS 500 model ensures a stable and uninterrupted power source for your devices, making it an essential component for any home or office setup requiring reliable power protection.