My findings.
The cables are all of very good quality and a total processed equally.
In a cable I had to disconnect the plug because I had to move through a wall (I have a crimping tool and a home new RJ45 plug fitted).
Here I have found that the internal wires are not additionally shielded.
This leaves a bad feeling somehow but is also so visible on the product image.
Anyway, my entire network with the cables running absolutely reliably and with excellent signal characteristics.
Price / performance are absolutely great for me, I would buy the cable at any time!