The Cisco 5500 Series Wireless Controller is a highly scalable and flexible platform that enables system wide services for mission-critical wireless in medium to large-sized enterprises and campus environments. Designed for 802.11n performance and maximum scalability the 5500 Series offers enhanced uptime with RF visibility and protection the ability to simultaneously manage up to 500 access points; superior performance for reliable streaming video and toll quality voice; and improved fault recovery for a consistent mobility experience in the most demanding environments.