The 100G QSFP28 LR4 is a hot-pluggable optical transceiver module designed for 100 Gigabit Ethernet applications. QSFP28 refers to the physical form factor—Quad Small Form-factor Pluggable 28—which supports 4 channels of 25Gbps to achieve a total data rate of 100Gbps. Pluggable coherent optic transceivers integrate all the functions needed in a digital coherent optic (DCO), including the coherent digital signal processor (DSP), the optics needed for light transmission, modulation and detection, and the microprocessor electronics for turn-up and operation. This portfolio includes DR1 500m, FR1 2km, LR1 20km, ER1 40km, BiDi LR1 10km, and BiDi ER1 40km etc. including 100GBASE-SR4,100GBASE-LR4,100GBASE-ER4 and 100GBASE-ZR4. Extend your network up to 80km with our QSFP28 modules. With today's 100G optics, we're at the point where it now influences your network hardware cost and fiber infrastructure design. Cisco's vision is to simplify 100G pluggable optics. With fewer components in the pluggable module, we can scale manufacturing volume and cost to the level of today's 10G. HIGH PERFORMANCE UNDER EXTREME CONDITIONS, the Amphenol AOP 28Gbps extended temperature " Quad Embedded Pluggable Transceiver ” is designed for highly challenging applications where both reliability and performance are critical. Capable of speeds up to 28Gbps at distances up to 70m for the full. In today's rapidly developing network communication field, the QSFP28 100G optical module is vital.