Snapmaker power cord for 40W laser air assist

Finally got around to installing the 40W laser that I got six months ago and I’ve noticed that I can’t connect the air assist without a special adapter power cord for the Snapmaker, a cord that apparently wasn’t in the box. Was this something that was supposed to have come with my laser or something I just should “known” that I would need?

On the moment of purchasing you must make a choice for the SM you will use with the laser. If you have choosen the SM 2.0, the right adapter cord was in the box. If not contact the after sales.

The same thing happened to me because I didn’t realise that my 20W laser was ordered by mistake for the Artisan, which doesn’t require this cable.
I had to reorder the cable for a fee. (lack of goodwill on the part of Snapmaker)