Chateau 5G R17 AX - external antenna ports?

Hardware
1

Hi, I have a Chateau R17 AX and am curious what the ANT1-ANT4 ports are on the back under the plastic cover. If I look into them I see something that looks like a connector. However, other wires sometimes go through the hole (if I shake the R17 itself).

Are those supposed to be cellular or WiFi antennas? If 5G, are those just blanks or are they functional? Considering this is the highest end Chateau I can buy right now I would hope they are actual ports.

Thanks.

2

If you disassemble the device to install external antennas,
those are the holes designated for attaching the external connectors, detaching the internal antennas.

some example:

3

Ah, I see. Any ideas if doing this could affect the device warranty? I mean the holes in the plastic are there, so it implies the feature is at least semi-intended.

Edit: Just noticed only LTE models allow ROS settings for external antenna, not 5G models

4

No,
if you open it, you can install external antennas for any model.
I wrote it:

attaching the external connectors, detaching the internal antennas