Hello, if you want one from Samsung, this would be the right model: https://www.digitec.ch/de/s1/product/samsung-wmn-b16fbxc-wand-75-40-kg-tv-wandhalterung-21263439. You can also use one from a third-party manufacturer. For example, this one: https://www.digitec.ch/de/s1/product/vogels-tvm-5445-wand-tv-wandhalterung-24196835.
However, it is important that you lay the cable to the connect box so that it is not bent too much in any situation.