Fan Tray Module
The Fan Tray module contains four integrated fans which cool the device's internal components. The Fan Tray module draws in air through a perforated grill on the left side of the chassis. The incoming air passes through the entire set of modules, cooling each one, and then exits the device through perforated vents on the right side of the chassis.
The front panel of the module provides a label showing the chassis slot assignments for the different modules.