The H3C JH419A 100G QSFP28 SWDM4 transceiver modules are designed for 100G Ethernet links over duplex multimode fiber. Four channels/lanes in the 850-940nm region @ 25. 78Gbps to transport the Ethernet signal. Digital diagnostics functions are available via an I2C interface, as specified by the. The Cisco 100GBASE Quad Small Form-Factor Pluggable (QSFP) portfolio offers customers a wide variety of high-density and low-power 100 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider. The 100 Gbit/s QSFP28 optical modules can only be used with 100 GE interfaces. Transmission distances can be 0. 3bm 100GBASE-SR4 and CAUI-4 standard.