10/100BASE-T SFPNVIDIA/Mellanox MMS4X00-NS400 Compatible 400G Single-port OSFP RHS/Flat Top DR4L Transceiver Module
This NVIDIA/Mellanox MMS4X00-NS400 compatible transceiver provides 400G connectivity in a hot-swappable Single-port OSFP RHS/Flat Top package. Its optical design operates at 1310nm for up to 100m, using MPO-12/APC. Complete parameters and related OEM references help high-density deployments balance optical performance, port access and thermal planning.
OEM Part Number: MMS4X00-NS400HT Part Number: OSFP-DR4L-400G-FL
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MMS4X00-NS400
- 400G connectivity at 425Gbps (4x106.25Gbps)
- Optical wavelength: 1310nm
- Specified reach: 100m
- MPO-12/APC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| NVIDIA/Mellanox Ethernet Compatible | MMS4X00-NS400 |
|---|---|
| Manufacturer | HT |
| HT Part Number | OSFP-DR4L-400G-FL |
| Form Factor | Single-port OSFP RHS/Flat Top |
| Max. Data Rate | 425Gbps (4x106.25Gbps) |
| Wavelength | 1310nm |
| Max. Cable Distance | 100m |
| Connector | MPO-12/APC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -2.9~4dBm |
| Minimum Receiver Power | -5.9dBm |
| Power Budget | 3dB |
| Receiver Overload | 4.0dBm |
| Max. Power Consumption | 9W |
| Extinction Ratio | 3.5dB |
| 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 & RX Built-in CDR |
| Inbuilt FEC | Yes |
| Core Size | 9/125um |
| Packaging Technology | COB |
| MTBF | 4974730 Hours (@40°C, 60% CL)2542973 Hours (@40°C, 90% CL)3639584 Hours (@50°C, 60% CL)1750006 Hours (@50°C, 90% CL)2349812 Hours (@60°C, 60% CL)1061485 Hours (@60°C, 90% CL) |
| Application | 400G Ethernet |
| Protocols | OSFP MSA Rev. 5.0, CMIS Rev. 4.0, IEEE Std 802.3bs-2017, IEEE Std 802.3ck-2022 |
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 400G interface configuration must match the remote equipment; sharing a Single-port OSFP RHS/Flat Top housing alone does not make two transceiver types interoperable.
The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 100m route. Keep the MPO-12/APC interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -2.9~4dBm; the stated optical power budget is 3dB. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
High-Density Port and Thermal Planning
In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 425Gbps (4x106.25Gbps), wavelength 1310nm, rated reach 100m.
Ordering Information
Use MMS4X00-NS400 as the compatibility cross-reference and OSFP-DR4L-400G-FL as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. Neutral labels, customer packaging and project-specific compatibility review are available on request.
NVIDIA/Mellanox Compatibility and Factory Testing
The module is checked for host recognition as MMS4X00-NS400, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies MMS4X00-NS400, not an original NVIDIA/Mellanox-branded module.
Which fiber and connector are required?
Use MPO-12/APC with SMF. The specified maximum reach is 100m, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
