Cisco Catalyst C9800-40-K9 Wireless LAN Controller

The Cisco Catalyst C9800-40-K9 provides centralised wireless control for large campus environments, giving teams a dedicated hardware appliance for resilient AP management and policy consistency. It supports high availability to help keep large estates connected and predictable as demands grow.

Starting from: £1435.00 Ex. VAT

Cisco Catalyst C9800-40-K9 Overview

As wireless estates grow denser and more distributed, operations teams need policy consistency, resilient management and predictable performance without adding unnecessary controller sprawl.

Centralised Control for Large Campus WLANs

The Cisco Catalyst C9800-40-K9 provides dedicated wireless control for large campus deployments. It is built for environments with up to 2000 access points and 32000 clients, where AP density, client volume and operational oversight all matter.

Designed for Day-to-Day Wireless Operations

With 40 Gbps controller throughput, the platform gives wireless teams room to manage policy, telemetry and software lifecycle tasks from a single appliance. That makes it easier to keep change control steady and maintain visibility across active user loads.

Scale That Fits Production Demands

The result is a wireless platform that aligns with coverage, density and management requirements in larger estates. It supports consistent service delivery while keeping infrastructure simpler to operate and easier to govern.

Speak to our team about Cisco Catalyst C9800-40-K9 and how it can fit your wireless deployment and operational requirements.

Cisco Catalyst C9800-40-K9 Key Features​

Cisco Catalyst C9800-40-K9 is a wireless network controller for enterprise campus deployments, designed to centralize control and scale WLAN operations in demanding access environments.

Scale Campus Wireless Control

Centralized Access Point Control
The platform provides controller-based management for up to 2000 access points, supporting large campus wireless deployments.

Client Density Scaling
It is designed to support up to 32000 clients, helping align wireless capacity with high-user enterprise environments.

High-Capacity Throughput Architecture
The controller delivers up to 40 Gbps of throughput to support aggregate WLAN traffic at scale.

Enterprise Network Aggregation
Its controller architecture consolidates wireless policy and traffic handling into a single operational platform for campus networks.

Operate Wireless Networks

Policy-Centric Management
The controller model supports centralized wireless operations, making it easier to apply consistent control across managed access points.

Capacity Planning Visibility
Defined AP, client, and throughput limits provide clear sizing boundaries for deployment design and operational planning.

Campus Deployment Consistency
A controller-led architecture helps maintain uniform wireless behavior across distributed enterprise access environments.

Speak to a Cisco Networking Specialist

When you need to size campus wireless control for dense user populations, our team can help align the Cisco Catalyst C9800-40-K9 with your performance and coverage requirements.

Cisco Catalyst C9800-40-K9 Technical Specifications

Full specifications for this model are listed below.

Additional information

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Cisco Catalyst C9800-40-K9 Deployment Scenarios

The Cisco Catalyst C9800-40-K9 is a central wireless control platform for medium to large campus estates that need steady performance, consistent policy and resilient day-to-day operations. It fits deployments where AP and client counts have outgrown compact controllers but do not justify a modular tier.

Hospital Wireless for Clinical Mobility

Hospitals and larger clinics use this controller when bedside devices, carts, voice handsets and guest access must stay stable across busy wards. It helps IT keep policy consistent, limit disruption during changes and maintain visibility over patient and admin traffic.

Branch and Office Networks with Compliance Oversight

Finance teams often need one control point for staff, visitor and meeting-room wireless across several floors or a sizeable branch. This model supports predictable authentication, segmentation and monitoring, reducing operational drift while keeping working-hour performance dependable.

Guest and Event Wireless in Hotels

Hotels and venues rely on it when rooms, lobbies, conference suites and back-office areas all demand different wireless behaviour. Central control helps teams handle peak guest demand, keep staff services separate and respond faster to service issues.

Roaming-Heavy Professional Services Offices

Professional services environments with hybrid work and dense meeting schedules need reliable roaming and simple troubleshooting across multiple access points. The C9800-40-K9 gives network teams a dedicated control layer for consistent policy and fewer site-by-site fixes.

Warehouse and Depot WLAN Operations

Logistics sites benefit when scanners, handhelds, tablets and yard users must stay connected across racks, loading bays and office zones. This controller supports central oversight for distributed depots, reducing local changes and helping maintain operational continuity.

Planning a Cisco Catalyst C9800-40-K9 Deployment?

We can help design and deploy a Cisco Catalyst C9800-40-K9 wireless control platform for healthcare, finance, hospitality, professional services and logistics environments that need dependable scale, clear policy control and practical support for rollout.

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Tailored recommendations for your infrastructure

Below you’ll find alternative models, suitable software and services that pair with this solution – helping you to avoid compatibility issues, reduce support overhead and deploy with confidence.

Not sure where to start?

Not all deployments fit standard configurations. If you’re weighing up options or want a second opinion on your setup, our team is here to help with honest, straightforward advice backed by decades of vendor knowledge.

Looking for a different model?

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