Keep critical systems online with APC Smart-UPS Modular Ultra power protection engineered for environments that need capacity planning, not guesswork. This 5 kW platform is scalable to 20 kW with N+1 redundancy, giving infrastructure teams a path to grow without replacing the entire UPS architecture. Designed for 208/240 V deployments, the tower configuration fits a 24U rack footprint and supports data center, edge, and distributed IT environments where uptime targets are tied to business continuity. Modular power architecture helps align installed capacity with actual load, which is especially valuable when rack density changes over time. Compared with fixed-output alternatives, this model is built for teams that want room to expand, maintain service continuity during module events, and avoid overbuying capacity on day one. It is a practical choice when the cost of downtime is higher than the cost of a more capable UPS platform.