AC Power Supply Units (AC only) are pre-installed in the Chassis.
You can swap in more units, or replace units, without interfering with the operation of the Scalable Platform.
Note - One AC PSU cannot supply sufficient power to support a fully populated Chassis.
To insert an AC Power Supply Unit:

When you insert a fan tray the Chassis, the fans start at full speed and then decrease by steps of 7%. Under normal operating conditions, the fans run at 21% of full speed. The lower speed reduces the noise and increases the longevity of the fans.
The speed of each individual fan is monitored. If the speed of one fan drops below the desired speed (i.e. fan failure), the other fans speed up.
Fans are pre-installed in the appliance. Manual replacement must be coordinated with Check Point Support.

To Insert a Fan: