40G QSFP+ WSP-Q40GLR4L 2km 1310nm Duplex LC/UPC Module, Cisco

The 40G QSFP+ WSP-Q40GLR4L 2km 1310nm Duplex LC/UPC Module, Cisco is a QSFP+ optical transceiver delivering 41.2Gbps (4x 10.3Gbps) over SMF. Operating at 1310nm with a Duplex LC interface, it reaches 2km and is compliant with 40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 40G Ethernet data center and enterprise network environments.
Product Highlights
- QSFP+ form factor, 41.2Gbps (4x 10.3Gbps) data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 2km
- Fiber media: SMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | WSP-Q40GLR4L |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.2Gbps (4x 10.3Gbps) |
| Wavelength | 1310nm |
| Max. Transmission Distance | 2km |
| 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 | ≤3.5W |
| Extinction Ratio | >3.5dB |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant |
Applications
The 40G QSFP+ WSP-Q40GLR4L 2km 1310nm Duplex LC/UPC Module, Cisco is used in 40G Ethernet data center and enterprise network environments, where it provides a 41.2Gbps (4x 10.3Gbps) link over SMF up to 2km. The Duplex LC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Cisco hardware, it is a drop-in equivalent of the WSP-Q40GLR4L.
Standards and Compatibility
This product is designed and tested to comply with 40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number WSP-Q40GLR4L.
Ordering Information
Our part number for this module is QSFP-LR4L-40G. 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.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.
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.
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.
