INTCERA 40G QSFP + ER4 optical module (GQS-SPO400-ER4C) e tšehetsa sebaka sa phetisetso ho fihlela ho 40km ho sebelisa CWDM wavelengths (1271nm, 1291nm, 1311nm, 1331nm).E etselitsoe 40G Ethernet 40GBASE-ER4 le lihokelo tsa OTN OTU3 holim'a li-fibers tsa duplex single mode.