Cisco XENPAK-10GB-LR+ 10GBASE-LR 1310nm 10Gbps 10km Duplex SC XENPAK Transceiver Module 10-1838-04.
Data Transfer Rate: 10Gbps
Input/Output Ports: Duplex SC
Form Factor: XENPAK
Features: Media: SMF; DOM Support: Yes; TX Power: -8.2~0.5dBm; Receiver Sensitivity: <-16.5dBm; Commercial Temperature Range: 0 to 70°C.