Cisco C9800-40-K9 Wireless Controller

• Enterprise Wireless LAN Controller
• Up to 2,000 Access Points
• Up to 32,000 Clients
• 4 x 10GE SFP+ Ports
• Redundant Power Supply Supported
• IOS XE Software / High Availability
• Modular Uplink Design

Enterprise-Class Control – Cisco C9800-40-K9 Wireless Controller

The Cisco Catalyst 9800-40 Wireless Controller (C9800-40-K9) is built for midsize to large enterprises, combining high scalability, advanced security, and intelligent mobility in a compact and powerful 1RU chassis. Designed with Cisco IOS XE, it offers seamless integration into modern networks with cloud and on-premise deployment flexibility.

Designed for Scalability & Performance

Support up to 2,000 access points and 32,000 clients, with 40 Gbps of throughput, making it ideal for campuses and enterprises expanding their wireless infrastructure. Modular uplinks and hot-swappable fans/power supplies offer flexible deployment and easy serviceability.

Secure & Reliable

With secure boot, runtime defenses, and trusted platform modules (TPM), the C9800-40 ensures end-to-end encrypted wireless connectivity. Advanced features like identity-based access, segmentation, and RF excellence are built in.

Powered by Cisco IOS XE

Benefit from a modern, programmatic operating system supporting model-driven telemetry, API automation, and seamless software upgrades. Deploy with confidence in hybrid environments.

Technical Specification

• Model: Cisco Catalyst 9800-40 (C9800-40-K9)
• Access Point Support: Up to 2,000
• Client Support: Up to 32,000
• Throughput: 40 Gbps
• Ports: 4 x 10GE SFP+ (modular uplinks)
• Redundancy: Dual hot-swappable power supplies & fans
• Form Factor: 1RU Rackmount
• Software: Cisco IOS XE
• Security: Encrypted control plane, Secure Boot, TPM
• Management: GUI, CLI, NETCONF/YANG, Model-Driven Telemetry
• High Availability: Stateful switchover (SSO), seamless roaming