Cisco Nexus 9500 N9K-X9736Q-FX 36-Port 40G QSFP | ACI Spine, MACsec — N9K-X9736Q-FX

Anchor high-performance fabrics with the Cisco Nexus 9500 N9K-X9736Q-FX. This 36-port 40G QSFP module is built for aggregation and ACI spine deployments where port density, security, and deterministic switching behavior are essential. MACsec support adds link-layer protection for environments carrying sensitive east-west traffic, while the Nexus 9500 family gives architects a platform suited to modern data center designs. The 36 x 40G QSFP layout supports dense uplink and spine connectivity, helping teams reduce oversubscription and simplify fabric planning. For enterprises standardizing on Cisco NX-OS and ACI, this module fits the kind of infrastructure decisions that carry real operational weight. It is not about adding ports for the sake of count; it is about preserving fabric integrity, maintaining security posture, and supporting a switching architecture that can handle demanding production workloads. That makes it a strong choice for core refreshes, spine expansion, and secure aggregation layers where cheaper alternatives often fall short on feature depth. Ideal For ACI spine deployment in enterprise data centers Secure aggregation for east-west traffic High-density 40G fabric expansion Core switching in Cisco-standardized environments Why This Product 1 36 x 40G QSFP ports for dense spine connectivity 2 MACsec support for link-layer traffic protection 3 ACI spine fit for Cisco data center fabrics 4 Layer 3 managed switching for enterprise control