@_Neptunno_ Thanks for the links. I didn't even know those cables existed. The only thing that works for me are physical leds because they are headless machines.

Before you wrote the answer, I bought this (it hasn't arrived yet), with which I hope to be able to connect the controller. I'm also taking a risk because there's no 100% certainty that it will work at x1 (according to what I read around, it should), but well. Also, a fifth SATA would save me a USB drive, so it's the solution that best fits what I need. Performance is not a problem because they are mechanical drives.

If I see that it doesn't work either, I'll try with the cables you mentioned.

What I want to do is more on the side of the geek thing than of practical utility but as you say, it's a matter of niche and besides having little variety, the prices are not cheap (50€ a mid-range controller and 6€ each cable... a pass).

Let's see if you publish an entry even if it's just a tease

@cobito In theory, the x264 codec is better than AMD's h264 codec. At least, more efficient. The quality at the same bitrate is better (in theory) in x264 but I don't appreciate it and many people also say the same thing... It is also true that it has improved a lot... It is also true that the quicksync codec and intel's nvenc and nvidia's respectively are better than AMD's in terms of h264. In the AV1 codec there is not much difference but that is only in RDNA3 onwards.