The Cisco 7204 supports multiprotocol, multimedia routing and bridging with a wide variety of protocols and port adapter combinations available for Cisco 7200 series routers. In addition, the Cisco 7204 midplane provides increased support for multiple high-bandwidth port adapters.The Cisco 7204 has four slots for port adapters, one slot for an input/output (I/O) controller, and one slot for a network processing engine or network services engine. You can place the port adapters in any of the four available slots. The Cisco 7204 operates as either a tabletop or a rack-mounted unit.