The single port Gigabit Ethernet Port Adapter (PA-GE) provides a Gigabit Ethernet connection for the Cisco 7200 and Cisco 7304 series routers. This port adapter (PA), which offers moderate performance, is suitable for campus, enterprise edge and wide-area network (WAN) aggregation applications. When used on the campus, the Cisco 7200 and Cisco 7304 series routers with the PA-GE connects the enterprise WAN to the Gigabit Ethernet campus backbone. At the enterprise edge, the PA-GE connects the WAN to the Gigabit Ethernet campus backbone. When the Cisco 7200 series router is used for WAN aggregation, the PA-GE provides intra-pop connectivity between the router and high-speed WAN core devices, such as the Cisco 12000 series router. The PA-GE may be inserted into any open port adapter slot on Cisco 7200VXR routers while the PA-GE is supported on the Cisco 7304 by way of the Carrier Card.