NZXT Sentry 2 Fan Controller
 

Gaming PCs have long since reached a point where multiple fans of different sizes and RPM are necessary to adequately cool the hardware it uses. With such a variety comes the potential of tweaking each individual fan to a certain speed, in order to preserve power when not needed and control the airflow of the rig. If you are using standard fans connected to a power supply alone, this is impossible. The solution to all these problems is a fan controller, in this case a 5.25" expansion bay and hardware that, at the very least, controls multiple fans. The interface of a controller, how it controls the speeds, style, and capacity are but a few things that set models apart from one another. NZXT has sent us the Sentry 2 to see how it performs.

http://lanoc.org/review/hardware/coo...-nzxt-sentry-2