QSFP DD 400G DR4 Transceiver 400G QSFP DD DR4 PAM4 1310nm 500m MTP/MPO SMF FEC1 Description 400G QSFP DD DR4 optical module uses a standard MPO 12 connector to transmit up to 500m over single mode fiber. The Transceiver is compliant with QSFP DD MSA, IEEE 802. 3bs protocol, and 400GAUI 8 standard. 400 Gigabit Ethernet signals are transmitted over four parallel channels on one wavelength per channel. It can also be connected to 100G DR optical modules. It adopts a 1310nm EML transmitter type and PAM4 pulse amplitude modulation
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