
Designed for 40G Ethernet data center and enterprise network environments, the 40G QSFP+ 10km 1310nm Duplex LC/UPC Industrial Module, Cisco provides 41.25Gbps (4x 10.3125Gbps) 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 QSFP+ MSA, SFF-8436, IEEE 802.3ba and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP+ form factor, 41.25Gbps (4x 10.3125Gbps) data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 10km
- Fiber media: SMF
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| Part Number | QSFP-LR4-40G-I |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.25Gbps (4x 10.3125Gbps) |
| 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 | <-11.5dBm |
| Power Budget | 4.5dB |
| Receiver Overload | 2.3dBm |
| Max. Power Consumption | ≤2.5W |
| Extinction Ratio | >3.5dB |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Protocols | QSFP+ MSA, SFF-8436, IEEE 802.3ba |
Applications
In 40G Ethernet data center and enterprise network environments, the 40G QSFP+ 10km 1310nm Duplex LC/UPC Industrial Module, Cisco delivers 41.25Gbps (4x 10.3125Gbps) transmission over SMF with a reach of 10km. The Duplex LC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request.
Standards and Compatibility
This product is designed and tested to comply with QSFP+ MSA, SFF-8436, IEEE 802.3ba. It plugs into any standards-based QSFP+ port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
Our part number for this module is QSFP-LR4-40G-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.
Delivery
Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed 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.
Package
Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.



