Wireless question

Hi! I’m going to order a Radxa today, specifically the 4gb 32gb version. I would like to know if choosing external antenna means I get the option to connect an antenna, and if it would still have onboard wifi capability. If it does allow you to connect an antenna what type of connector is it? I have the tiny leads for my pi0 external antenna which I soldered on. On the pi0 doing that means you lose onboard wireless. Thanks in advance for answers.