Maintain uptime for servers, network gear, and edge infrastructure with a rack-mount UPS built for demanding environments. The Vertiv Liebert PSI5 2200VA/1920W combines lithium-ion battery technology with automatic voltage regulation to help ride through brownouts and short outages without forcing unnecessary battery discharge. That matters in racks where power quality fluctuates and service windows are tight. With 2,200 VA and 1,920 W of output capacity, this model is sized for higher-density deployments that need more than basic backup. The lithium-ion design supports a longer service life profile than traditional lead-acid batteries, reducing replacement frequency and the operational disruption that comes with it. The included RDU120 card adds remote monitoring capability, giving infrastructure teams better visibility into UPS status and power conditions from outside the rack. This is a strong fit for environments where power protection is part of a broader uptime strategy: branch server rooms, network closets, distributed edge sites, and compact data center racks. It is designed to protect equipment that cannot tolerate abrupt shutdowns, while helping teams spend less time on battery maintenance and more time on the systems that matter.