Designed for 100G Ethernet, data center interconnect and 5G transport networks, the 100G QSFP28 4W20 4x 25G NRZ 1310nm 20km Duplex LC /UPC Industrial Module, Cisco provides 103.125Gbps (4x 25.78Gbps) throughput in a QSFP28 form factor. It operates at 1310nm over SMF through a Duplex LC connector and supports link lengths up to 20km. The module meets QSFP28 MSA,IEEE 802.3-2018,4WDM-20,SFF-8661,SFF-8636 and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP28 form factor, 103.125Gbps (4x 25.78Gbps) data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 20km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | QSFP-4W20-100G-I |
|---|---|
| Manufacturer | HT |
| 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
In 100G Ethernet, data center interconnect and 5G transport networks, the 100G QSFP28 4W20 4x 25G NRZ 1310nm 20km Duplex LC /UPC Industrial Module, Cisco delivers 103.125Gbps (4x 25.78Gbps) transmission over SMF with a reach of 20km. With its Duplex LC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of QSFP-4W20-100G-I. The link runs 4x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
Compliance: QSFP28 MSA,IEEE 802.3-2018,4WDM-20,SFF-8661,SFF-8636. For projects standardized on Cisco hardware, this product replaces the QSFP-4W20-100G-I directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
Our part number for this module is QSFP-4W20-100G-I. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.
Built to Your Spec
Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.
Logistics
Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.
Packaging Options
Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.
