Questions about Zyxel NR5103

I use a normal SIM. An additional SIM to my Sunrisetarif. So I see no reason why it shouldn't work with the Galaxus SIM.

If you understand English, there is a very good online documentation for the "A" version which is identical to the one sold here. https://devicesupport.three.co.uk/guides/device/Zyxel/NR5103E5GHub#l=threeukcust&lHsim=threeukcust&d=Zyxel/NR5103E%205G%20Hub&s=LCX_Router&loc=threeuk&hsimSpinner=true

The router requires a maximum of 48 watts, but in normal operation I have measured the router at around 15 watts. However, the power supply unit is designed for a maximum of 48 watts, so that devices connected to the USB 3.0 port could also be operated (within the permissible power consumption that can be drawn via USB 3.0). What you should note about the router is that it has a small fan built into the bottom of the housing, which you can still hear in a quiet room at a distance of about 2-3 m. The fan runs at first, but then it stops. The fan does not run at first, but later it runs permanently.

Unfortunately, it only says that it is EasyMesh R2 certification ready in the spec. We have tried it with Zyxel WLAN-Mesh-Repeater WX3100-T0. Unfortunately they can't work together :( . The WiFi6 coverage is also not comparable with the separate WLAN mesh repeater WX3100-T0, or with Google NEST, which we had before. As a 5G router great, but WiFi 6 rather turn off and build separately. At least it works without NAT.