Cisco 1-Port 10 Gigabit Ethernet Shared Port Adapter is available on high-end Cisco routing platforms, offering the benefits of network scalability with lower initial costs and ease of upgrades. The Cisco SPA/SIP portfolio continues the company's focus on investment protection along with consistent feature support, broad interface availability, and the latest technology.Within a central office or data center or in a metropolitan-area network (MAN), 10 Gigabit Ethernet interfaces are commonly used to interconnect routers or other devices. The Cisco 1-Port 10-GE SPA meets customers' needs for various applications. With this SPA, users can mix and match SPA ports with other types of interfaces in the same slot. The Cisco 1-Port 10-GE SPA is IEEE 802.3ae standards-based for compatibility and interoperability.