NOW AVAILABLE! The Vertiv™ Liebert® PST5 is an offline UPS technology that provides power backup protection for desktop computers, gaming consoles, workstations, wireless networks and routers, surveillance systems and other electronics. Designed with easy controls for worry free operation, the Liebert PST5 features ample time for you to save your work in progress and/or complete an orderly shutdown for your equipment when you experience a power outage.