The Enthusiast System Architecture detailed
One thing you’ll notice inside an ESA system is a whole lot more cabling. The Cosmos chassis, for example, has numerous fans that must all be plugged into a central control box located at the top of the case. This control box is responsible for fan speed control and monitoring, so there’s no need to plug fans into the power supply. We also see several temperature sensors wired into the chassis control box for monitoring system temperatures at various locations inside the case.