Most modern power supply units today come with cables that you plug into the units themselves. This is called a modular setup. There are also semi-modular PSUs that have certain cables pre-installed that cannot be removed. All this helps to alleviate issues with bad airflow and cramped space caused by too many cables inside the chassis. It also enables case modders and PC builders to have some fun by throwing in custom cables into the mix.
It's possible to order cables that fit your modular PSU with the color of choice, though a full set can almost hit $100. A more affordable option in the short run is to purchase extenders. These don't connect your PSU to components directly, but instead hook onto PSU cables so you can show off the beaded custom finish while hiding the default black mess behind every nook and cranny.
As for the Core P5, the white cabling makes it vastly more appealing. All that's left to do is to throw in a cable comb or two on each of the connections and everything should look rather smart.
Shop around, there are a bunch of websites and locations you'll be able to pick some up. There are a few listings on Amazon, should you wish to give this a try and add some color to your PC setup. Red, while and black are listed but you'll be able to find blue, orange, green and other varieties around the Internet.
