QSFP-LX4-100GIntel QSFP-LX4-100G Compatible 100G QSFP28 LX4 Transceiver Module
This Intel QSFP-LX4-100G compatible transceiver provides 100G connectivity in a hot-swappable QSFP28 package. Its optical design operates at 1271nm,1291nm,1311nm,1331nm for up to 2km on SMF / 100m on OM3 MMF, using Duplex LC. Complete parameters and related OEM references help structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: QSFP-LX4-100GHT Part Number: QSFP-LX4-100G
Product Highlights
- Compatible alternative to Intel QSFP-LX4-100G
- 100G connectivity at 103.12Gbps (4x 25.78GGbps)
- Optical wavelength: 1271nm,1291nm,1311nm,1331nm
- Specified reach: 2km on SMF / 100m on OM3 MMF
- Duplex LC / SMF/MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | QSFP-LX4-100G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 |
| Max. Data Rate | 103.12Gbps (4x 25.78GGbps) |
| Wavelength | 1271nm,1291nm,1311nm,1331nm |
| Max. Cable Distance | 2km@SMF/100m@OM3 MMF |
| Connector | Duplex LC |
| Media | SMF/MMF |
| Transmitter Type | CWDM4 DFB |
| Receiver Type | PIN |
| TX Power | -3~4.5dBm |
| Minimum Receiver Power | -7.3dBm |
| Power Budget | 4.3dB |
| Receiver Overload | 4.5dBm |
| Power Consumption | ≤4.5W |
| Extinction Ratio | >3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Inbuilt FEC | Yes |
| Packaging Technology | COB (Chip on Board) Packaging |
| Protocols | IEEE Std 802.3bm-2015, SFF-8665 Rev 1.9, SFF-8636 Rev 2.10a, SFF-8679 Rev 1.8 |
Applications and Optical Link Design
Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.
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.
The multimode channel should use the fiber grade associated with the stated 2km on SMF / 100m on OM3 MMF reach. Keep the Duplex LC end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.
Intel Compatibility and Factory Testing
The module is checked for host recognition as QSFP-LX4-100G, 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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -3~4.5dBm; the stated optical power budget is 4.3dB. 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.
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 103.12Gbps (4x 25.78GGbps), wavelength 1271nm,1291nm,1311nm,1331nm, rated reach 2km on SMF / 100m on OM3 MMF.
Ordering Information
When ordering, specify QSFP-LX4-100G, QSFP-LX4-100G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. 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 QSFP-LX4-100G 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 Intel transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-LX4-100G, not an original Intel-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF/MMF. The specified maximum reach is 2km on SMF / 100m on OM3 MMF, 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.
