QSFP-4W20-100G-IExtreme QSFP-4W20-100G-I Compatible 100G QSFP28 4WDM-20 Transceiver Module
The QSFP-4W20-100G-I compatible module serves equipment requiring a 100G QSFP28 interface with 1310nm optics and a 20km rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: QSFP-4W20-100G-IHT Part Number: QSFP-4W20-100G-I
Product Highlights
- Compatible alternative to Extreme QSFP-4W20-100G-I
- 100G connectivity at 103.125Gbps (4x 25.78Gbps)
- Optical wavelength: 1310nm
- Specified reach: 20km
- Duplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| Extreme Compatible | QSFP-4W20-100G-I |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-4W20-100G-I |
| Form Factor | QSFP28 |
| Max Data Rate | 103.125Gbps (4x 25.78Gbps) |
| Wavelength | 1310nm |
| Max Cable Distance | 20km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | -4.3~4.5dBm |
| RX Power | -14.5~4.5dBm |
| Power Budget | 10.2db |
| Extinction Ratio | ＞4dB |
| Power Consumption | <4.5W |
| DDM/DOM | Supported |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Packaging Technology | COB (chip on board) Packaging |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Protocols | QSFP28 MSA,IEEE 802.3-2018,4WDM-20,SFF-8661,SFF-8636 |
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.
The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.
The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 20km route. Keep the Duplex LC interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
Extreme Compatibility and Factory Testing
Compatibility testing for QSFP-4W20-100G-I 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 -4.3~4.5dBm; the stated optical power budget is 10.2db. 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 103.125Gbps (4x 25.78Gbps), wavelength 1310nm, rated reach 20km.
Ordering Information
When ordering, specify QSFP-4W20-100G-I, QSFP-4W20-100G-I, 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
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.
Frequently Asked Questions
Is this an original Extreme transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-4W20-100G-I, not an original Extreme-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 20km, 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.
