Ubiquiti Networks UniFi WiFi BaseStation XG (UWB-XG)

Overview
A fourth radio is visible in the FCC photos. It may be the "Dedicated Security Radio"
 * and/or a DFS channel monitor. It is 1x1:1 and connected via Mini PCIe.

Links of Interest
Datasheet


 * Ubiquiti Networks UniFi WiFi BaseStation XG (UWB-XG-BK)
 * 802.11ac, 4x4, 5GHz, Tri-Band, Wave 2, MU-MIMO