The 400GBASE-DR4 silicon photonics module, MTP/MPO-12 connector, up to 500m over parallel single-mode fiber. It is compliant with OSFP MSA, CMIS 4.0 I2C Interface and 400GAUI-8 standards.
The 400 Gigabit Ethernet signal is carried over four parallel 1310nm optical lanes by one wavelength per lane. It can be used as 4x100G breakout to QSFP-DR-100G.