400G QSFP112 SR4 transceiver modules are designed for use in 400 Gigabit Ethernet links on up to 100m of OM4 multi mode fiber. They are compliant with the QSFP112 MSA and IEEE 802.3db.The optical transceiver is RoHS compliant.

FEATURES： Hot-pluggable QSFP112 SR4 multimode transceiver Compliant with QSFP112 MSA Compliant with CMIS Rev 4.0 and above revision Integrated 850nm VCSEL array and PD array w/o DSP or CDR 4-channels of 100G-PAM4 electrical and optical modulation Single MPO-12 APC receptacles  Maximum power consumption 2.8W Single 3.3V power supply Case operating temperature 0°C to 70°C Class 1 laser  RoHS complaint

The 400G QSFP112 SR4 Transceiver is designed to transmit and receive serial optical data links up to 106.25 Gb/s data rate (per channel) by PAM4 modulation format over multi-mode fiber. It is a small-form- factor hot pluggable transceiver module integrated Optical Extinction Ratio 2.5 dB with high performance vcsel. It is compliant with 400G Ethernet specs and QSFP112 MSA.