This product is either discontinued or we cannot get that from suppliers.
Cisco AIR-AP1852E-B-K9 External Antenna, Wireless Access Point, Frequency 2.46 GHz/5.83 GHz, Wireless LAN Standard IEEE 802.11ac, Network (RJ-45) Ports-2, Speed 1.66 Gbit/s.
Ideal for small and medium-sized networks, the Cisco® Aironet® 1850 Series delivers industry-leading performance for enterprise and service provider markets via enterprise-class 4x4 MIMO.