Luxshare-TECH provides 400G QSFP-DD to 2xQSFP56 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, 2x212.5Gb/s by using 2 electrical/optical lanes with 106.25Gb/s PAM4 for QSFP56. They can operate in the commercial temperature range. These products are compliant with QSFP-DD MSA and IEEE 802.3bs standards, can be applied in 400GBASE-SR8 Ethernet, data center and cloud services.