GrenTech 400G QSFP-DD SR4 compliant with IEEE802.3bs, with MPO-16 APC Connector, 8x50G PAM4 VCSEL. The power consumption is less than 10W in commercial temperature, up to 100m on OM4 fiber when FEC enable. The 400G optical transceiver, also known as 400G optical module, are widely used in data centers and 400G Ethernet.