The MTB-LR40 by PLANET™ Technology is an 10,000Mbps 10G Ethernet XFP/SFP+ Fiber Transceiver. Package: SFP+. PHY Type: 10GBase-LR. Fiber Type: Single Mode. Connector: LC. DDM: Yes. Wavelength: 1310nm. Max. Distance: 40km. Operating Temperature: 0 to 60°C.