Vertiv Liebert PSI5 Lithium 1100 VA 2U Rack/Tower UPS | Short Depth

Keep essential infrastructure online with a UPS designed for tight rack spaces and dependable 120 V protection. The Vertiv Liebert PSI5 Lithium 1100VA Short Depth 2U Rack/Tower unit combines lithium battery technology with a compact chassis, giving IT teams a cleaner fit for shallow cabinets, branch offices, and edge deployments where depth is limited. At 1,100 VA, this model is sized for network equipment, small server loads, and other critical electronics that need orderly shutdown protection and short ride-through during power disturbances. The 2U rack/tower format supports flexible deployment, while the included RDU120 provides a management path for monitoring and control. For teams standardizing on lithium-based backup, this model offers a strong balance of footprint, service life expectations, and operational clarity. The result is a UPS that fits where larger systems do not, without sacrificing the visibility and control expected in professional IT environments. It is a smart choice when rack depth, uptime, and maintainability all matter.