I bought the following cables due to the following requirements:
1. Music streaming via cable, as Wi-Fi is often no longer sufficient on the distance at her wireless speakers
2. shield to prevent noise
3. Optics
All three requests were very well served.
I use the devil Raumfeld speakers and the connector at home to distribute music from my home computer to the speakers. As expected, there are no dropouts and no noise. Furthermore, I found the quality very good. For the functionality of course, the appearance does not matter, but I must admit that my cable to the touch or watching just like better than a "normal" Ethernet cable. Who can do without it, will be satisfied with a more favorable product and can even save a little money.
All those to whom it is important to be able to access safely at this point.
I use the cable already for half a year and there are no complaints thus far.
I hope I could help you.