As was mentioned earlier, I²C devices can be used in a wide range of applications. Shown in this slide is a block diagram highlighting I²C usage in the server segment. In this generic server application, there are two areas where I²C devices can be used. The first is in conjunction with the BMC, or base-board management controller, performing housekeeping duties such as fan control and humidity control. The next application is card detect signals for the hot plug controllers. I²C devices can be used in other areas too, however to keep things simple, only two areas are highlighted in this example.