Arista Networks QSFP-40G-LR4 Compatible 40G QSFP+ LR4 1310nm (CWDM4) 10km LC SMF DDM Transceiver Module
Arista QSFP-40G-LR4 Compatible 40GBase LR4 QSFP+ Transceiver supports 10km transmission over SMF with duplex LC connectors, which is compliant with MSA standards.