The ChillStream from Logitech is a gaming controller compatible with the Xbox 360 and the PC. This controller is modelled after the 360 controller, but with a significant difference: a 40 mm built-in cooling fan. The fan is designed to run very quiet and push lots of cool air over your four fingers, the base of your thumbs, and over the palms of your hands. If you game a lot, and/or tend to get sweaty hands, then you might consider the ChillStream. Unlike other controllers with built-in fans, it is quiet and no bigger than a standard controller.