QSFP28 LR4 100Gb / s minangka transceiver optik paralel papat saluran, pluggable, lan dirancang kanggo 100 Gigabit Ethernet, InfiniBand EDR, FDR, aplikasi QDR.Padha tundhuk karo Spesifikasi SFF-8665, IEEE 802.3bm 100GBASE-LR4 lan Telcordia GR-468-CORE.Transceiver optik tundhuk karo syarat RoHS.