Power surges and the sudden loss of power can damage computers, televisions, and other electronics. Power strips are only equipped with handling protection from power surges. It does not protect against brownouts, blackouts or drops in voltage. If you want the ultimate protection of household or business electronics, you need the Liebert PSA5 Battery Backup to protect against power supply interruptions. The Energy Star certified PSA5-1500 is an economical, line-interactive UPS battery backup technology designed with the features you need for reliable power protection for small office/home office computers, network gear, and home entertainment equipment. Designed with easy controls for user friendly operation, the Liebert PSA5 provides ample run time to save work in progress and shutdown your equipment in an orderly fashion. With built in USB port, included USB cable and with available MultiLink shutdown software you can receive remote alerts and complete an unattended orderly shutdown of your systems.