100G QSFP28 ER4 transceiver is designed for use in 100 Gigabit Ethernet, Telecom networking and Data Center Interconnect.It adopts 4x25G electrical interface and has a maximum power consumption of 5W. This transceiver supports 103.125Gb/s aggregate bit rate, which can up to 40km transmission on single mode fiber. Its operating case temperature is from 0℃ to 70℃, and the single power supply is 3.3V.