Keep NCS 5500 routing systems powered for sustained throughput with a Cisco 1,100 W DC power supply engineered for the platform. In dense network environments, power modules are not just about wattage — they are part of the thermal and availability design. This unit’s port-side exhaust and back-to-front airflow orientation help it fit into established rack cooling strategies where predictable airflow matters. For teams running carrier, enterprise, or aggregation workloads, a platform-matched power supply reduces risk during replacement and simplifies spare planning. The 1,100 W DC rating supports demanding routing hardware, while the direct-fit Cisco design helps maintain service continuity in production racks. When the network core is carrying traffic that cannot pause, the right power module protects uptime without adding operational complexity. Choose this module when you need a replacement that matches the chassis, the airflow direction, and the DC power environment. It is built for infrastructure teams that value compatibility, thermal discipline, and fast restoration of service.