100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco

The 100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco is a QSFP28 optical transceiver delivering 103.125Gbps (4x 25.78Gbps) over SMF. Operating at 1310nm with a Duplex LC/UPC interface, it reaches 40km and is compliant with QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 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/UPC
- Reach: up to 40km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | QSFP-100G-ER4L-S |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 |
| Max. Data Rate | 103.125Gbps (4x 25.78Gbps) |
| Wavelength | 1310nm |
| Max. Cable Distance | 40km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | APD |
| TX Power | -2.5~6.5dBm |
| Minimum Receiver Power | -20.5dBm |
| Power Budget | 18dB |
| Receiver Overload | -3.5dBm |
| Max. Power Consumption | 4.5W |
| 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 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Packaging Technology | BOX Packaging |
| Bit Error Ratio (BER) | 1E-12 |
| MTBF | 16,084,928 Hours (@40°C, 60% CL) |
| Protocols | QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4 |
Applications
Network architects choose the 100G QSFP28 ER4L 4x 25G NRZ QSFP-100G-ER4L-S 1310nm 40km Duplex LC/UPC Module, Cisco for 100G Ethernet, data center interconnect and 5G transport networks: it runs 103.125Gbps (4x 25.78Gbps) over SMF and reaches 40km. With its Duplex LC/UPC 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-100G-ER4L-S.
Standards and Compatibility
This product is designed and tested to comply with QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number QSFP-100G-ER4L-S.
Ordering Information
Our part number for this module is QSFP-ER4L-100G. 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.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
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
Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.
100G QSFP28 ER4L 4x 25G NRZ