The 10G-SFP-LR-I from 3Coptics is a Fiber Optic Transceiver with Data Rate 10 Gb/s, Wavelength 1310 nm (DFB), Distance/Reach 10 km (Reach), Output Power -8.2 to 0.5 dBm, Receiver Sensitivity -14.4 dBm. More details for 10G-SFP-LR-I can be seen below.