
The 400G QSFP112 SR4 Optical Transceiver is a hot-pluggable QSFP112 transceiver rated at 425Gbps (4x106.25Gb/s). Using a MPO-12/APC optical interface over MMF at 850nm, it covers transmission distances up to 30m@OM3/50m@OM4. Compliance with QSFP112 MSA, CMIS Rev5.0, IEEEdf-2024, together with integrated diagnostic monitoring, makes it a dependable choice for InfiniBand HDR fabrics, HPC clusters and AI computing networks.
Product Highlights
- QSFP112 form factor, 425Gbps (4x106.25Gb/s) data rate
- Wavelength: 850nm
- Connector: MPO-12/APC
- Reach: up to 30m@OM3/50m@OM4
- Fiber media: MMF
- DDM/DOM: Supported
Specifications
| NVIDIA/Mellanox InfiniBand Compatible | MMA1Z00-NS400 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP112 |
| Max. Data Rate | 425Gbps (4x106.25Gb/s) |
| Wavelength | 850nm |
| Max. Cable Distance | 30m@OM3/50m@OM4 |
| Connector | MPO-12/APC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -4.6~4dBm |
| Minimum Receiver Power | -6.4dBm |
| Power Budget | 1.8dB |
| Receiver Overload | 4.0dBm |
| Max. Power Consumption | 9W |
| Extinction Ratio | >2.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x100G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| CDR (Clock and Data Recovery) | TX and RX |
| Inbuilt FEC | Yes |
| Core Size | 50μm |
| Packaging Technology | COB |
| MTBF | 1420071 (@40°C, 90% CL) |
| Application | 400G InfiniBand |
| Protocols | QSFP112 MSA, CMIS Rev5.0, IEEEdf-2024 |
Applications
The 400G QSFP112 SR4 Optical Transceiver is used in InfiniBand HDR fabrics, HPC clusters and AI computing networks, where it provides a 425Gbps (4x106.25Gb/s) link over MMF up to 30m@OM3/50m@OM4. With its MPO-12/APC optical interface, the module works directly with the MMF infrastructure already installed in most facilities. It is interoperable with NVIDIA/Mellanox InfiniBand platforms and replaces the NVIDIA/Mellanox InfiniBand part MMA1Z00-NS400 directly.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the NVIDIA/Mellanox InfiniBand part MMA1Z00-NS400 and works in NVIDIA/Mellanox InfiniBand systems out of the box. Standards compliance covers QSFP112 MSA, CMIS Rev5.0, IEEEdf-2024.
Ordering Information
To order, quote QSFP112-SR4-400G together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.
Packaging
Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
Logistics
Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.



