10/100BASE-T SFPNVIDIA/Mellanox QSFP28-LR4-100/112G Compatible 100G QSFP28 LR4 Transceiver Module
This NVIDIA/Mellanox QSFP28-LR4-100/112G compatible transceiver provides 100G connectivity in a hot-swappable QSFP28 package. Its optical design operates at 1310nm for up to 10km, using Duplex LC. Complete parameters and related OEM references help high-density deployments balance optical performance, port access and thermal planning.
OEM Part Number: QSFP28-LR4-100/112GHT Part Number: QSFP-LR4-100GM
Product Highlights
- Compatible alternative to NVIDIA/Mellanox QSFP28-LR4-100/112G
- 100G connectivity at Dual Rate 103.1Gbps and 112Gbps
- Optical wavelength: 1310nm
- Specified reach: 10km
- Duplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| NVIDIA/Mellanox Ethernet Compatible | QSFP28-LR4-100/112G |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-LR4-100GM |
| Form Factor | QSFP28 |
| Max Data Rate | Dual Rate 103.1Gbps and 112Gbps |
| Wavelength | 1310nm |
| Max Cable Distance | 10km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | 4 x LAN WDM DML TOSA |
| Receiver Type | 4 x PIN ROSA |
| TX Power(100G) | -4.3~4.5dBm |
| Receiver Sensitivity(100G) | <-8.6dBm |
| TX Power(112G) | -0.6~4dBm |
| Receiver Sensitivity(112G) | <-8.4dBm |
| Transmit and Dispersion Penalty | 2.2dB |
| Power Budget | 6.3dB |
| Power Consumption | ≤3.5W |
| Extinction Ratio | >4dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Modulation Format | NRZ |
| Inbuilt FEC | No |
| Core Size | 9um/125um |
| Protocols | 100G Ethernet, 25G Ethernet, OTN OTU4 4I1-9D1F |
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 100G interface configuration must match the remote equipment; sharing a QSFP28 housing alone does not make two transceiver types interoperable.
Before commissioning, measure the complete single-mode channel against the stated budget for 10km. Inspect every Duplex LC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Quality Assurance and Packaging
Each QSFP28-LR4-100/112G 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.
Optical Acceptance, Diagnostics and Handling
For this model, the stated optical power budget is 6.3dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. 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 Dual Rate 103.1Gbps and 112Gbps, wavelength 1310nm, rated reach 10km.
Ordering Information
Use QSFP28-LR4-100/112G as the compatibility cross-reference and QSFP-LR4-100GM 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
Factory verification starts with the expected QSFP28-LR4-100/112G identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. 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 QSFP28-LR4-100/112G, not an original NVIDIA/Mellanox-branded module.
Which fiber and connector are required?
Use Duplex LC 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.
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.
