Supervisor Engine 32 offers a robust feature set at a low cost entry point for the wiring closet. Because it comes standard with the PFC3B Supervisor Engine 32 offers feature consistency with the Supervisor Engine 720. Supervisor Engine 32 comes in two versions: 8x1 Gigabit Ethernet (GE) Small Form-Factor Pluggable (SFP)-based ports or 2x10 GE XENPAK-based ports. Supervisor Engine 32 requires the high-speed fan tray when operating in the Cisco Catalyst 6500 chassis. As such a minimum of 2500W AC (in either 110V or 220V mode) or DC power supply is required for operation in a 6- 9- and 13-slot chassis.It requires a minimum of 950W in the 3-slot chassis.Cisco Part Number WS-SUP32-GE-3B.