Vertiv PSI5-500SRT1ULIN 500VA 1U Lithium UPS | Rack Mount, Enterprise

Maintain power continuity for compact infrastructure with a UPS built for dense rack environments. The Vertiv Liebert PSI5 Lithium 500 VA model combines a short-depth 1U rack/tower form factor with lithium-based backup to support critical edge gear, network appliances, and distributed IT closets where every inch of rack space counts. At 120 V, it fits standard North American power environments and gives teams a practical way to protect equipment without overcommitting footprint or capacity. This model is well suited to deployments that need dependable runtime for graceful shutdowns, brief ride-through, or orderly failover to alternate power sources. The included RDU120 adds management visibility, helping operators monitor the unit in environments where local access is limited. For procurement teams, the value is in the balance: compact size, lithium battery technology, and rack/tower flexibility in a package designed for long service life and efficient use of space. Choose it when you need more than basic backup. It is a fit for infrastructure that must stay controlled, observable, and ready for the next power event.