Cisco Catalyst 9166D1 Tri Band IEEE 802.11a/b/g/n/ac/ax/d/h 7.78 Gbit/s Wireless Access PointCisco Catalyst 9166D1 Tri Band IEEE 802. 11a b g n ac ax d h 7. 78 Gbit s Wireless Access Point The Cisco Catalyst 9166D1 is the next generation of enterprise wireless access points designed to meet the demands of modern, high density networks. This tri band WiFi 6E capable device brings the new 6 GHz band into your environment, delivering significantly higher capacity, lower latency, and improved efficiency for countless devices and applications.