Looking at this it won’t be a good option for some RTX3000 cards. If I used this on my 3080 the cables would be directed right over the air vent for the end fan that passes air through the card.
I'm no electrical engineer but I have always been of the thought that the less connections from start of one circuit to the end the better. It is sort of like high quality camera lenses. The less glass between the camera and the object the better.