7210 SAS-M Overview
7210 SAS-M Installation Guide Page 27
USB Port 
The USB port is reserved for future use. 
Fan Tray
A hot-swappable fan tray on the right side of the front panel contains three fans that provide 
cooling for the chassis. See Figure 6 for an illustration of the fan tray. 
The fans are controlled by the system software, and their speed is set according to the 
environmental temperature surrounding the switch. Allow at least three inches of clearance on the 
side of the rack to ensure proper airflow intake cooling system. The fan trays must be in place 
before the chassis is powered on.
Figure 6: Fan Tray