Tripp Lite Cisco-Compatible SFP-10G-LR-S SFP+ Transceiver - 10GBase-LR/ DDM/ SMF/ LC/ 1310 nm/ 10 km (6.1 mi.) - SFP+ transceiver module (equivalent to: Cisco SFP-10G-LR-S) - 10 GigE - 10GBase-LR - LC single-mode - up to 6.2 miles - 1310 nm