Yes, this is possible, a VESA mount is available.

Of course, the monitor will come with a power cable. After all, it's not an Apple product. see "Accessories included in the box" --> https://zowie.benq.com/en/product/monitor/xl/xl2411p.html#specification - - - - - - - - - - - - - - - - - - - - Digitec is obliged to supply electrical appliances with a Swiss plug. If the appliance is supplied with a foreign plug, a suitable replacement cable should be supplied if the mains cable is pluggable or alternatively if the mains cable is permanently connected, a suitable adapter should be supplied. If the appliance is delivered without a suitable plug, complain to the customer service and insist on a cable or an adapter, free of charge. Point 1 --> https://www.esti.admin.ch/de/themen/faq/elektrische-erzeugnisse-marktueberwachung/

I had a cable (CH version) with me at the time.

I would definitely recommend this monitor for the PS4 Pro BenQ EL2870U. Only 100.- extra but then with HDR

Nope, gaming with a headset is much better anyway. It's worth it if you can spend a few francs more. Greetings

Hi there, If your graphics card supports >60Hz, you will be able to go up in FPS (up to 144 with this screen). After that, if your graphics card doesn't have a DisplayPort, I doubt it supports 144Hz. Check it out. If you want to read a bit in English: https://www.reddit.com/r/Dell/comments/4pm82o/does_typec_to_displayport_12_adapter_support/ I hope I could help you.

Yes indeed, the colours are completely wrong from the start... For my part, it's mainly the gamma adjustment that allowed me to find something "normal". I'll mention it in my review if I ever do: https://www.digitec.ch/fr/s1/ProductRating/un-des-meilleur-rapport-qualite-prix-en-144hz-1-ms-525418

This monitor does not appear to be equipped with the AMD FreeSync feature.

Yes, it has a DP cable, which is also stated in the description.

No, you need an HDMI or DP cable.

The seal of the packaging / box... Which is normal for a used item.

Good day, As you connect the monitor via HDMI, you can connect the jack on the left side for headphones or speakers that can be controlled via jack. I already did this with my Switch on the predecessor ^^ Kind regards

Yes.