These PSU extension cables work very well. I haven't had any power issues, just make sure they're fully plugged in. The red color is exactly what I was looking for. However, I have an NZXT H510 case and wish I had a longer version of the cables. If the connection between this extension and the power supply cable works, there is a cable routing channel. I got this working, but I had to move some other cables to make it work.