100G QSFP28 4W20 4x 25G NRZ 1310nm 20km Duplex LC /UPC Industrial Module, Cisco

The 100G QSFP28 4W20 4x 25G NRZ 1310nm 20km Duplex LC /UPC Industrial Module, Cisco is a hot-pluggable QSFP28 transceiver rated at 103.125Gbps (4x 25.78Gbps). Using a Duplex LC optical interface over SMF at 1310nm, it covers transmission distances up to 20km. Compliance with QSFP28 MSA,IEEE 802.3-2018,4WDM-20,SFF-8661,SFF-8636, together with integrated diagnostic monitoring, makes it a dependable choice for 100G Ethernet, data center interconnect and 5G transport networks.
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
Built for 100G Ethernet, data center interconnect and 5G transport networks, this QSFP28 module carries 103.125Gbps (4x 25.78Gbps) over SMF up to 20km per link. The Duplex LC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. 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.
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.
Worldwide Delivery
We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.
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.
