40gbase-Er4 40g Qsfp+ 40km 1270nm~1310nm SMF Duplex LC Optical Transceiver Module

40G QSFP+ ER4 40km CWDM 1270nm-1310nm LC Connector Optical Module  Form TypeQSFP+Max Data Rate41.25GbpsWavelength1270nm-1310nmMax Cable Distance*40KMConnectorLCTransmitter TypeDFBCDRSupportedDDM/DOMSupportedTX Power-2~5dBmReceiver Sensitivity