Ubiquiti NanoBridge M5 22dbi 5GHz MIMO Bridging Solution with airMAX TDMA Protocol and InnerFeed Antenna Technology (NB-5G22-US) Operation mode AP, Client, WDS Frequence 5.7 - 5.8 GHz Gain 22 dBi Reflector dish diameter: 11.8in (300mm) NanoBridge M5: World's First Cost-Effective 5GHz MIMO Bridging Solution.