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

Sustain critical edge workloads with a UPS designed for tight spaces and demanding uptime requirements. The Vertiv Liebert PSI5 Lithium 1100VA Short Depth 2U Rack/Tower 120V combines lithium battery technology with a compact chassis that fits where deeper enterprise UPS units cannot. Its rack/tower flexibility makes it a practical fit for network closets, branch offices, and distributed infrastructure that needs clean backup power without sacrificing floor or rack space. At 1,100 VA, this model is sized for smaller servers, network gear, storage appliances, and communications equipment that must stay online through short outages and power disturbances. The lithium battery design is a strong fit for teams that want lower maintenance overhead and a longer service profile than traditional battery systems typically provide. Short-depth construction also helps simplify deployment in shallow racks and wall-mount environments where clearance is limited. For infrastructure teams standardizing on compact power protection, this UPS offers a disciplined balance of footprint, runtime support, and deployment flexibility. It is a premium choice when the cost of downtime is higher than the cost of protecting the load properly.