Cisco NEXUS 9400 8P 400G QSFP-DD LEM | Data Center Switch — N9K-X9400-8D

Keep critical data center traffic moving with the Cisco NEXUS 9400 8P 400G QSFP-DD LEM. This module is designed for Nexus 9400 environments that need dense 400G connectivity without sacrificing fabric consistency or operational control. It fits into architectures where throughput, port utilization, and predictable scaling are more important than adding another generic switch. For teams building high-capacity leaf-spine or aggregation designs, the 8-port 400G QSFP-DD layout helps consolidate uplinks and reduce cabling complexity. That matters when rack space is tight, optics budgets are real, and every port must justify its place in the design. Cisco’s Nexus platform also gives infrastructure teams a familiar operational model for large-scale data networking. Choose this module when you need to extend a Nexus 9400 chassis with high-speed interfaces that align with modern server, storage, and interconnect demands. It is a fit for environments where downtime is expensive and network design decisions are measured in years, not quarters. Ideal For Leaf-spine uplink expansion in large data centers Aggregation of high-throughput server and storage traffic Fabric scaling in Cisco Nexus 9400 deployments High-density interconnects for compute clusters Why This Product 1 8 x 400G ports for dense uplink consolidation 2 Modular chassis design for controlled scaling 3 QSFP-DD connectivity for modern high-speed fabrics 4 Cisco Nexus platform alignment for enterprise operations