C9400-LC-24S=: What Makes Cisco’s Line Card Essential for High-Density Access Layers?


Core Functionality & Port Architecture

The ​​C9400-LC-24S=​​ is a ​​24-port 10GBase-T line card​​ designed for Cisco’s Catalyst 9400 Series modular chassis. It delivers ​​10G copper connectivity​​ with ​​802.3at PoE+​​ support, providing ​​30W per port​​ to power devices like ​​Wi-Fi 6/6E APs​​, ​​IP cameras​​, and ​​collaboration endpoints​​ without external power supplies.


Deployment Scenarios & Use Cases

  • ​High-density enterprise campuses​​: Support clusters of 802.11ax APs or digital signage requiring simultaneous power and 10G throughput.
  • ​Converged OT/IT networks​​: Power motor controllers, sensors, or AV systems while maintaining low-latency data delivery.
  • ​Edge compute nodes​​: Host Cisco IOx applications for localized IoT analytics without overloading core switches.

Chassis Compatibility & Scalability

This line card slots into ​​Catalyst 9407R, 9410R, or 9436R chassis​​, scaling port density up to ​​144x 10GBase-T ports per chassis​​. It supports ​​Cisco StackWise Virtual​​ for unified management across distributed stacks, reducing operational overhead in multi-site deployments.


Advanced Security & Traffic Segmentation

Integrated with ​​Cisco DNA Center​​, the module enforces ​​group-based policies (GBP)​​ to segment IoT devices, guests, and critical endpoints. ​​MACsec-128 encryption​​ secures traffic at the port level, critical for industries like healthcare or finance with stringent compliance needs.


Power Efficiency & Thermal Resilience

With ​​EnergyWise​​ technology, the line card dynamically adjusts power delivery based on device demand, cutting idle consumption by ​​25-40%​​. Its ​​front-to-back airflow​​ aligns with hot-aisle/cold-aisle containment, operating reliably at ​​ambient temperatures up to 45°C​​.


Licensing & Operational Simplicity

The module ships with ​​Network Essentials​​ for basic Layer 2/3 features. ​​DNA Advantage​​ unlocks SD-Access, encrypted visibility, and AI-driven assurance. For legacy mode, ​​IP Base​​ supports OSPFv2, EIGRP, and PIM protocols.


Procurement & Firmware Notes

For verified pricing and availability, visit [“C9400-LC-24S=” link to (https://itmall.sale/product-category/cisco/). Ensure chassis supervisors run ​​IOS XE 17.9.3+​​ to enable full PoE+ and StackWise Virtual functionality.


Why This Line Card Delivers for Scaling Demands

Having deployed Catalyst 9400 Series in large campuses, the ​​C9400-LC-24S=​​ stands out for balancing ​​10G density​​ and ​​PoE+ flexibility​​ without chassis bloat. Its 30W per port eliminates midspan injectors in wireless rollouts, while StackWise Virtual simplifies distributed management. For enterprises modernizing access layers incrementally, this module is a cost-effective bridge between legacy and next-gen needs.

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