Cisco DS-X2-FC10G-SR=. Data transfer rate (max): 10000 Mbit/s. Connectivity technology: Wired. Maximum transfer distance: 300 m, Wavelength: 850 nm. Dimensions (WxDxH): 41.8 x 90.8 x 19.2 mm, Interface: X2, Connector(s): SC - SC

Cisco 10-Gbps Fibre Channel X2 Transceivers
The Cisco Fibre Channel X2 transceivers are designed to provide high-performance Fibre Channel connectivity for the 10-Gbps Fibre Channel ports on the Cisco MDS 9000 family platform. There are three types of Cisco 10-Gbps Fibre Channel X2 transceivers for transmission on optical cables: Cisco Short Reach (up to 300 m; part number DS-X2-FC10G-SR), Cisco Long Reach (up to 10 km; part number DS-X2-FC10G-LR), and Cisco Extended Reach (up to 40 km; part number DS-X2-FC10G-ER). There is also a 10-Gbps Fibre Channel X2 transceiver for transmission on copper cable (up to 15 m; part number DS-X2-FC10G-CX4). Each product offers 10-Gbps Fibre Channel connectivity.