Works very well without an external antenna. Unfortunately, I have not yet found a suitable external antenna.

Hello,
It also works without an external antenna. But we have connected it because otherwise the router loses speed through the house wall. Greetings

I bought this model to add antennae, but it was impossible to find any despite numerous requests to the manufacturer. The outputs here are 2x male and most of the antennas on the market are male too.
If anyone has a solution, I'd be delighted. In the meantime, very disappointed

I have not fitted an aerial. The Deco X50 still works perfectly, even though the mobile phone network at the location is very weak. Hotspots with the mobile are almost not possible there. Mobile provider / SIM card from swisscom. Salt and Sunrise I have no reception there.