Cisco NCS-57B1-5D24H-SE= Fixed Scale Chassis 5x400G

Scale transport capacity without adding chassis complexity. Cisco NCS57B1 Fixed Scale HW 5x400, 24x100 All QSFP-DD Chassis is built for service-provider environments that need dense, predictable port economics in a fixed form factor. The platform combines 5 x 400G and 24 x 100G QSFP-DD connectivity, giving network teams a practical mix for high-bandwidth uplinks, aggregation, and optical handoff points. This chassis fits deployments where throughput, port density, and operational simplicity matter more than modular expansion. It is well suited to backbone edge, metro aggregation, and high-capacity interconnect roles where fixed-scale hardware can reduce design overhead while preserving carrier-grade performance. For teams standardizing on QSFP-DD optics, the port layout supports clean alignment across 100G and 400G service tiers. Choose this model when you need a purpose-built transport platform that can carry demanding workloads with fewer moving parts than a modular system. It is designed for infrastructure teams that value deterministic capacity planning, dense connectivity, and a deployment profile that supports long-term network consistency.