usb 2.0

Ok so I'm quite new to PC building and I bought a prebuild (it's custom second hand I just didn't build it myself) and I have thermaltake case fans that I'm trying to change the rgb colour of. I have downloaded the software and it says Could not find fan controller make sure fan controller is...

I've been very pleased with my fibre-optic Displayport cable and it occurs to me that by using long cables I could put my PC a lot farther away (cable-length-wise) and thereby reduce noise. The basic idea would be to have fibre DP cables going to my monitors and one 5m USB 2 cable going to a USB...