Extreme 8820 Series switches run with replaceable internal power supply modules that provide all of the power needed for the switch to operate. You can remove one power supply module without interrupting the switch's operation. Supported power supply configurations for Extreme 8820-40C models include two 1600 W AC power supply modules or two 1600 W DC power supply modules. Supported power supply configurations for Extreme 8820-80C models include four 1600 W AC power supply modules or four 1600 W DC power supply modules.
Power supply modules have integrated cooling fans that operate independently of the switch fans, and are available with front-to-back or back-to-front airflow. The direction of the airflow in both power supply modules must be in the same direction, and must also be the in same direction of the airflow in the fan modules.
Power supply modules are ordered separately for base models Extreme 8820-40C and Extreme 8820-80C. Power supply modules are included with other models.