I had a 3.5mm audio cable for the laptop, an OEM one, meaning anonymous and cheap. I tried another similar one, again for 3 euros. In both cases, as soon as I moved it a little, even accidentally, the mini jack plug would cut off the sound and produce noise that I was afraid would damage my speakers.

I bought this specific Roland one which, apart from being visually more high-quality (thicker and slightly less flexible), doesn't produce any noise even if I intentionally shake it to test it.

It is more expensive than the usual ones, but in my case, it was worth every penny up to the last cent because I was afraid, among other things, that the laptop's output was faulty.