Exclusive to the Cisco Catalyst 4503 Switch chassis the Catalyst 4500 Series Supervisor Engine II-Plus-TS is a 64 Gbps 48-million packets per second (Mpps) Layer 2 through 4 switching engine with 12-ports of wire-speed 10/100/1000 802.3af Power over Ethernet (PoE) and 8 wire-speed Small Form-Factor Pluggable (SFP) ports directly on the supervisor faceplate. These additional ports scale the maximum density of the Catalyst 4503 to 116 ports when deployed with a Catalyst 4500 Series Supervisor Engine II-Plus-TS. The addition of this new supervisor engine allows the Catalyst 4503 to deliver scalability innovative security integrated reliability and flexibility that is affordable and easy to use for the medium-sized business.