The Cisco X2-10GB-LR compatible X2 transceiver supports up to 10km over a standard pair of single mode fiber (SMF). This transceiver is compliant with the X2 MSA, RoHS, IEEE 802.3ae 10GBASE-LR standards. The built-in digital diagnostics monitoring (DDM) allows access to real-time operating parameters. It is suitable for SONET/SDH and Ethernet applications. The 10G transceiver is ideal for 10G Ethernet, Telecom, and Data Center.