CWDM 1310nm DFB, PIN, 10GBASE-LR compatible, 9.95-10.3Gb/s transceiver, RoHS compliant, single mode, pluggable SFP+ footprint, 3.3V, LC connector, digital diagnostics, -5/70C operation, 10km, 4 channels (1271/ 1291/ 1311/ 1331nm)

CWDM 1310nm DFB, PIN, 10GBASE-LR compatible, 9.95-10.3Gb/s transceiver, RoHS compliant, single mode, pluggable SFP+ footprint, 3.3V, LC connector, digital diagnostics, -5/70C operation, 10km, 4 channels (1271/ 1291/ 1311/ 1331nm)

FTLX2471DC0xx$278.88