FIBERSTAMP's 400G QSFP-DD XDR4 optical transceiver modules are designed to support 400G Ethernet, suitable for data center links up to 2km over single mode fiber with FEC. The 400G QSFP-DD XDR4 modules are compliant with IEEE 802.3cu 100GBASE-FR1 (four channels). The transmission side converts 8x 50G PAM4 electrical signals into 4x 100G PAM4 optical signal. Reversely the receiving side converts 4x 100G PAM4 optical signal into 8x 50G PAM4 electrical signals.
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