10/100BASE-T SFPNVIDIA/Mellanox OSFP-LR4-400G Compatible 400G OSFP (IHS/Finned Top) LR4 Transceiver Module
This NVIDIA/Mellanox OSFP-LR4-400G compatible transceiver provides 400G connectivity in a hot-swappable OSFP (IHS/Finned Top) package. Its optical design operates at 1271nm, 1291nm, 1311nm, and 1331nm for up to 10km, using Duplex LC/UPC. Complete parameters and related OEM references help structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: OSFP-LR4-400GHT Part Number: OSFP-LR4-400G
Product Highlights
- Compatible alternative to NVIDIA/Mellanox OSFP-LR4-400G
- 400G connectivity at 400Gbps
- Optical wavelength: 1271nm, 1291nm, 1311nm, and 1331nm
- Specified reach: 10km
- Duplex LC/UPC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | OSFP-LR4-400G |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) |
| Max. Data Rate | 400Gbps |
| Wavelength | 1271nm, 1291nm, 1311nm, and 1331nm |
| Max. Cable Distance | 10km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | CWDM EML |
| Receiver Type | PIN |
| TX Power | -1.9~4.8dBm |
| Minimum Receiver Power | -9.1dBm |
| Power Budget | 7.2dB |
| Receiver Overload | 5.6dBm |
| Max. Power Consumption | 10W |
| Extinction Ratio | 3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in DSP |
| Inbuilt FEC | No |
| Bit Error Ratio (BER) | ＜1E-12 |
| MTBF | 6955554.01 Hours |
| Packaging Technology | COB (Chip on Board) Packaging |
| Application | 400G Ethernet |
| Protocols | OSFP MSA, IEEE 802.3 bs-400GAUI-8, IEEE 802.3 cu, and CMIS4.0 |
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 OSFP (IHS/Finned 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 10km route. Keep the Duplex LC/UPC interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
NVIDIA/Mellanox Compatibility and Factory Testing
Compatibility testing for OSFP-LR4-400G combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -1.9~4.8dBm; the stated optical power budget is 7.2dB. During commissioning, record the host diagnostic readings after the link has stabilized and compare them with those limits. DOM values are useful operational indicators, but they do not replace calibrated optical measurements when a link is marginal. Investigate unexpected loss through connector inspection, cleaning and a channel measurement before replacing the module. 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.
Structured Fiber Pathways and Serviceability
Treat the transceiver as part of the complete channel. Follow the intended patch-panel route, maintain bend control and leave service access around the port. Confirm connector polish and fiber type at every mated pair; a documented service allowance is preferable to excess slack concealed inside a rack. For this model, the principal parameters are data rate 400Gbps, wavelength 1271nm, 1291nm, 1311nm, and 1331nm, rated reach 10km.
Ordering Information
Quote HT part number OSFP-LR4-400G together with OEM reference OSFP-LR4-400G and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.
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.
Quality Assurance and Packaging
Each OSFP-LR4-400G compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies OSFP-LR4-400G, not an original NVIDIA/Mellanox-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with SMF. The specified maximum reach is 10km, 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.
