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OSFP 400G SR4 850m 100m OM4 MPO-12 APC MMF Optical Transceiver Module

OT-400G-OSFP-SR4

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  • OSFP MSA compliant, Maximum power consumption: 8.5W.
  • 4×106.25Gbps electrical interface.
  • 4×106.25Gbps optics architecture.
  • 400Gbps data transmission over 100m on OM4 (60m on OM3).
  • MPO-12 connector receptacles and 3.3V power supply.
  • Built-in digital diagnostics for real-time monitoring.
  • RoHS compliant and IEEE 802.3 db compliant.
400G SR4 OSFP112 850nm 100m Optical Transceiver Module
400G-OSFP-RHS-SR4-Optical-Transceiver-Module-2
400G SR4 OSFP112 850nm 100m Optical Transceiver Module - Image 3

MSA Compatible 400G OSFP SR4 Optical Transceiver Module (MMF 850nm, 60m(OM3) / 100m(OM4), MPO-12 )

The Asterfusion 400G OSFP-RHS SR4 optical transceiver is a 400Gb/s OSFP112 flat top transceiver module engineered for short-reach multimode fiber links in high-density data centers. It converts 4 lanes of 106.25Gb/s PAM4 electrical input into 4 parallel 850nm optical channels, and performs the reverse conversion on the receive side, delivering an aggregate data rate of 425Gb/s over a single MPO-12 APC connector. With FEC enabled, the module reaches up to 100m on OM4 fiber (60m on OM3), and is fully compliant with the 400GBASE-SR4 (IEEE 802.3db) and CMIS 5.0 specifications, supporting both 400GAUI-4 Ethernet and InfiniBand NDR deployments. Running off a single +3.3V power rail with power dissipation held under 8W, the flat top (no heat sink) OSFP112 form factor is well suited to high port-density switch and NIC platforms. Built-in digital diagnostic monitoring (DDM) gives real-time visibility into supply voltage, case temperature, and per-lane transmit/receive optical power, while the module operates reliably across the full commercial case-temperature range of 0°C to +70°C. RoHS-compliant throughout, it’s a cost-effective, drop-in choice for 400G Ethernet, InfiniBand, and AI/HPC fabric interconnects.

Specification

Form FactorOSFPVendor NameAsterfusion
MediaMMFMax. Cable Distance60m(OM3)/100m(OM4)
Data Rate425Gbps(4x106.25Gbps)Wavelengths Range850nm
Transmitter TypeVCSELReceiver Type PIN
ConnectorMPO-12 APCDDM/DOMSupported
Extinction Ratio3dBPower Consumption<8.5W
Supply Voltage3.3VHumidity(non-condensing)0-85%
Operating Case Temperature0 to 70°C (32 to 158°F)Electrical Interface Hot pluggable
Storage Temperature-40 to 85°C (-40 to 185°F)Application InfiniBand NDR; 400G Ethernet
Part NumberOT-400G-OSFP-SR4ProtocolsOSFP MSA and CMIS compliant; IEEE 802.3db

Certifications

icon-FC
icon-CE
icon-RoHS

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    Questions & Answers

    What is the OT-400G-OSFP-SR4 transceiver module?

    It’s a 400Gb/s OSFP112 flat top optical transceiver built for 400GBASE-SR4 (IEEE 802.3db) short-reach applications, converting 4 lanes of 106.25Gb/s PAM4 electrical signals into 850nm optical signals for high-speed data center links.

    What are common uses for this 400G SR4 module?
    This module fits high-bandwidth, short-distance interconnects such as:

    • Data center switch-to-server and switch-to-switch links
    • AI/HPC compute fabric interconnects
    • InfiniBand NDR clusters
    • Cloud and hyperscale network backbones
    • Enterprise core network upgrades
    What type of fiber and connector does it use?

    It uses multimode fiber (MMF) with a single MPO-12 APC connector, carrying 4 transmit and 4 receive lanes over 850nm VCSEL optics.

    Does it support digital diagnostics?

    Yes. Built-in DDM (Digital Diagnostic Monitoring) continuously reports supply voltage, case temperature, and per-lane transmit/receive optical power for real-time link health monitoring.

    Will it work with my existing OSFP112 switch or NIC?

    The module follows the OSFP MSA and CMIS 5.0 management interface specification, so it’s compatible with OSFP112 ports across mainstream switch and NIC platforms supporting 400GBASE-SR4 or InfiniBand NDR.

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