100 Gb/s QSFP28 SR4 Optical Transceiver Module, 4 full-duplex channels, max. 100m OM4 MMF Transmission, MTP/MPO Connector, Taclink's QSFP28-SR4 100G QSFP28 transceiver modules are designed for use in 100 Gigabit Ethernet, 128GFC and 4x28G OTN client links over multimode fiber. They are compliant with the QSFP28 MSA 128GFC and IEEE 802.3bm 100GBASE-SR4 and CAUI-4. Digital diagnostics functions are available via the I2C interface as specified by the QSFP28 MSA. * Only work in uncoded switches!*, for Industry-Electronics/AlliedTelesyn/Avago/Avaya/Cambium/D-link/Entersys/Mikrotik/Netgear/Lancom/QNAP/Planet/Ubiquiti/Zyxel/ZTE,