There are a lot of manufacturers shipping their motherboards with rounded cables. This kind of cable helps the computer internal cooling since it takes less space inside the computer case.

click to enlarge
Figure 21: Rounded cables.

Conclusion

Our intention in this tutorial was to show you that the main motherboard manufacturers are investing a lot on extra features and to give you an overall idea of neat extra features you can find today. There is a lot of other nice features manufacturers are adding to their products we didn't mention, like front panels for you computer case with a lot of connectors, memory card readers, earphones, screwdrivers, remote controls and a lot more.

At the end, all consumers get better products. That's the nice thing about competition.