Yes. The connectors can be clearly seen.
The photo also invisibly shows me, looking like an idiot.
I had one 1x2 pin connector not attached.
And then concluded, when I noticed it, that both 1x2 pin connectors (which are additional to the two 2x3 pin connectors) are not needed, when I put the card back in.
And so I had missed connecting all plugs properly. Not two plugs are needed. But four.
All laughs on me, I pay the house.
System runs, all is fine.