QSFP28 is a 4-channel transceiver available for the transmission and reception of light and electricity data in fiber communication. 28 stands for the highest possible rate of 4x28Gbps in transmission. Compared with SFP+ and product, it is capable of transmitting the information on 100G Ethernet and consumes lower power for over 50% reduction. In general, QSFP28 is an evolvement version of QSFP, it is used on 100G Ethernet while QSFP transceiver on 40G Ethernet. The application of QSFP28 is often employed on high-speed interconnects within and between switches, routers and transport equipment, on server-server clusters, super-computing interconnections and on various backplanes.