Kākoʻo ka INTCERA 40G QSFP + ER4 optical module (GQS-SPO400-ER4C) i ka mamao o ka hoʻouna ʻana a hiki i 40km me ka hoʻohana ʻana i nā nalu nalu CWDM (1271nm, 1291nm, 1311nm, 1331nm).Hoʻolālā ʻia no ka 40G Ethernet 40GBASE-ER4 a me OTN OTU3 mau loulou ma luna o nā duplex single mode fibers.