The NanoPi M4 does have 2 antenna connectors where you need to attach 2 x antennas with hirose u.fl / ipex connectors for 5Ghz and 2.4Ghz WiFi and bluetooth. This is the same connector used for miniPCIe wireless card antennas. My M4 was supplied with 2x antennas, thin black objects with a wire and g...