My PC case here don't have a cable management features. The cables are lying around in the PC case. To be honest, it is not very ugly, but doing something to make it look even better is an advantage. Then with higher price power supply are commonly have modular cables design. This modular means that the cables can be installed to the power supply as per components use in the PC. With this modular design, the PC case will looks even neat. In this post I will modify my standard PC power supply. The result is tidy just like the modular one. Please note that this project is quite difficult to follow and it is also high risk and definitely void your PSU guarantee.