
Designed for 40G Ethernet data center and enterprise network environments, the 40G QSFP+ QSFP-40GE-LR4 10km 1310nm Duplex LC/UPC Module, Cisco provides 44.6Gbps (4x 11.2Gbps) throughput in a QSFP+ form factor. It operates at 1310nm over SMF through a Duplex LC connector and supports link lengths up to 10km. The module meets OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP+ form factor, 44.6Gbps (4x 11.2Gbps) data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 10km
- Fiber media: SMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | QSFP-40GE-LR4 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ |
| Max. Data Rate | 44.6Gbps (4x 11.2Gbps) |
| Wavelength | 1310nm |
| Max. Transmission Distance | 10km |
| Connector | Duplex LC |
| Media | SMF |
| Transimitter Type | DFB CWDM |
| Receiver Type | PIN |
| TX Power | -7~2.3dBm |
| Receiver Sensitivity | <-11dBm |
| Power Budget | 4dB |
| Receiver Overload | 2.3dBm |
| Max. Power Consumption | ≤3.5W |
| Core Size | 9um |
| Extinction Ratio | >3.5dB |
| Modulation | NRZ |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant |
Applications
Network architects choose the 40G QSFP+ QSFP-40GE-LR4 10km 1310nm Duplex LC/UPC Module, Cisco for 40G Ethernet data center and enterprise network environments: it runs 44.6Gbps (4x 11.2Gbps) over SMF and reaches 10km. 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-40GE-LR4.
Standards and Compatibility
This product is designed and tested to comply with OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number QSFP-40GE-LR4.
Ordering Information
Order this product as QSFP-LR4-40G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.
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.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
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.
Customization Service
Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.



