MR45 and MR55 usually do not include exterior antennas. The new Wi-Fi 6 conventional does allow nearly a maximum 4x boost in speeds on the cell boundary. Meraki does intend to Establish Wi-Fi six APs with exterior antennas, but as of April 29th, 2019 we haven't introduced something to the public. The MR55 might be operated in “Run Dark” method