Just because the nrf24 has some of the same frequencies as WiFi does not make it WiFi. Perhaps with the right software you can do some WiFi but I think that the length of the packets will come up short.
I have nrf24L01+ modules that have a connector on the PCB and use an external antenna. However, I have not worried about mounting and have no suggestions to make.
The question posed by DrAzzy still stands: "Which module is this?" A URL (link) would help, along with the manufacturer and the model number.