The MTRQ-1LA02-xxB QSFP28 transceiver modules is a high performance, cost effective module for 50 Gigabit Ethernet links over single mode fiber. They are compliant with the QSFP28 MSA, and IEEE 802.3cp. The Optical transceiver integrated with DSP that translated two lanes 26.56Gbps NRZ to 26.56GBd PAM4.