NVIDIA InfiniBand MMS4X00-NS400 OSFP 400G DR4+ PAM4 1310nm 2km MPO-12/APC SMF NDR Flat Top Optical Transceiver Module for ConnectX-7 HCA


NVIDIA InfiniBand Compatible OSFP 400G DR4 PAM4 Optical Transceiver (SMF, 1310nm, 2km, MPO-12/APC, DOM, Flat Top)

The 400G DR4+ (also known as xDR4) OSFP Optical Transceiver is an InfiniBand 400Gb/s Single-port OSFP, DR4+ single mode parallel transceiver using a single, 4-channel MPO-12/APC optical connector. The Reach 4-channel (DR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 2km using OS2 single mode fibers. It is qualified for use in InfiniBand NDR end-to-end systems.
It is the ideal solution for supercomputing, seamlessly integrating into computing and storage infrastructure to ensure efficient high-performance interconnectivity. Used in ConnectX-7/OSFP adapters linked to Twin-port transceivers in 2x400G IB switches.

The 2km 400G OSFP DR4+ part is similar to the 100-meter MMS4X00-NS400, only extensively tested up to 2km use cases and may employ a different error correction scheme.


  • Qualified for InfiniBand NDR End-to-End Systems
  • Built-in Broadcom 7nm DSP Chip, Max. Power Consumption 10W
  • Flat-top OSFP for ConnectX-7 Adapter
  • Support 800G-to-Two 400G Links for Switch-to-Adapter
  • 4x 100G-PAM4 electrical to 4x 100G-PAM4 optical Parallel
  • 100% Verified by the Original, Perfectly Compatible with NVIDIA ConnectX-7 Adapters
  • Compliant with OSFP MSA, IEEE 802.3ck and Class 1 Laser Safety, with DDM Support

Product Details

NVIDIA Compatible MMS4X00-NS400 Vendor Name LightOptics
Form Factor OSFP Max Data Rate 425Gbps
Wavelength 1310nm Max Distance 2km
Modulation Format PAM4 Host Required FEC
Connector MTP/MPO-12 APC Voltage Supply 3.3V
Cable Type SMF DDM Support Yes
Transmitter Type 1310nm EML Receiver Type PIN
TX Power -0.2~+4.2dBm Receiver Sensitivity < -6.4dBm
Operation Temperature 0 to 70°C (32 to 158°F) Maximum Power < 12.0W
Protocols OSFP MSA, IEEE 802.3bs Application 400G Ethernet, Datacenter Enterprise Networking, Infiniband Interconnects

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NVIDIA InfiniBand MMS4X00-NS400 OSFP 400G DR4+ PAM4 1310nm 2km MPO-12/APC SMF NDR Flat Top Optical Transceiver Module for ConnectX-7 HCA
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