Luxshare-TECH provides 400G QSFP-DD to 4xQSFP28 AOC product series, which can support 400G rate and 0 to 30m link transmission over multimode fiber .The link bandwidth is 425Gb/s by using 8 electrical/optical lanes with 53.125Gb/s PAM4 for QSFP-DD, 4x103.125Gb/s by using 4 electrical lanes with 25.78Gb/s and 2 optical lanes with 53.125Gb/s PAM4 for QSFP28. They can operate in the commercial temperature range. These products are compliant with QSFP-DD/QSFP28 MSA and IEEE 802.3bs standards, can be applied in 400GBASE-SR8 Ethernet, data center and cloud services.