The Cisco 10GBASE X2 module offers customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. The Cisco 10GBASE-LR Module supports a link length of 10 kilometers on standard single-mode fiber. Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network.