"Eoptolink’s EOLQ-161HG-20-LA2 QSFP28 transceiver module is designed for 112 Gigabit Ethernet links
over 20km single mode fiber. This product converts 4 channels of 28Gbps/25Gbps (NRZ) electrical input
data to 4 channels of 28Gbps/25Gbps (NRZ) LAN-WDM optical signals"