Cisco Systems AIR-CT3504-K9 Wireless LAN Controller

The Cisco AIR-CT3504-K9 Wireless LAN Controller is an 802.11ac centralized controller that manages and controls wireless access points across enterprise networks. It supports up to 150 access points with the permanent 150LC license and up to 3,000 clients, with 4x Gigabit Ethernet ports and a single multigigabit uplink for scalable deployments. Management is via Web GUI, CLI, Cisco Mobility Express, and Cisco Prime Infrastructure, and it includes WPA2/WPA3, 802.1X, and rogue AP detection to secure centralized wireless control with seamless roaming and RF management. The unit is designed for desktop or rack-mount installation and is powered by an external AC adapter; common replacements include Cisco C9800-L-C-K9, AIR-CT2504-K9, and AIR-CT5520-K9.