Hello,
I have created a wall mount for Chateau devices and thought I would share it here. It is currently the only game in town for a dedicated wall mount, and you can download and print it for free.
It attaches to the bevel between the white and black plastic bits at the bottom. It is very secure, you could mount it upside down if you wanted to. Likes, downloads and people posting makes of it on printables would be great if you find it useful.
https://www.printables.com/model/520750-mikrotik-chateau-wall-mount