Cisco 5508 Wireless Controllers deliver reliable performance, enhanced flexibility, & zero service-loss for mission-critical wireless. 802.11n offers up to nine times the performance of 802.11a/g networks. Interactive multimedia applications, such as voice & video, can now perform flawlessly over the wireless network, & clients can conveniently roam with no service interruption. Flexible licensing means that you can easily add access point support or premium software features.