The Cisco 10GBASE X2 modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. The Cisco 10GBASE-SR Module supports a link length of 26 m on standard FDDI grade MMF. Using 2000 MHz km*MMF (OM3), up to 300 m link lengths are possible.