▶ Introduction
In today’s high-speed networking environment, data centres and enterprise networks demand faster, more reliable, and cost-efficient solutions. The LINK-PP LQ-SW40-SR4C 40GBASE-SR SWDM4 module is designed to meet these needs, delivering 40 Gb/s over duplex multimode fibre while optimising power, cost, and performance.
▶ Key Takeaways
The LQ-SW40-SR4C adopts SWDM4 technology, enabling 40 Gb/s transmission over standard duplex MMF without infrastructure overhaul.
Compatible with OM3/OM4 multimode fibre, offering link distances up to 350m.
Features low power consumption (< 3.5 W) for energy-efficient data-centre operations.
Fully compliant with IEEE 802.3ba, QSFP+ MSA, and SWDM MSA for broad interoperability.
Provides a cost-effective and scalable upgrade path from 10G to 40G networks.
▶ Key Features
40 Gb/s Data Rate: Supports high-speed QSFP+ links for demanding network applications. (l-p.com)
SWDM4 Technology: Four wavelengths (850 nm / 880 nm / 910 nm / 940 nm) at 10 Gb/s each for efficient fibre usage.
Duplex LC/UPC Connectors: Compatible with standard multimode fibre (MMF) infrastructure.
Extended Reach: Up to 240 m on OM3 and 350 m on OM4 fibre for flexible data-centre layouts.
Low Power Consumption: Typical < 3.5 W to reduce heat load and operational cost.
Standards Compliance: Fully compliant with QSFP+ MSA, SWDM MSA, IEEE 802.3ba, SFF-8636.
Vendor Compatibility: Compatible with major brands (Cisco, Arista, Dell, HPE/Aruba, Juniper, Mellanox) for flexible deployment.
▶ Technical Specifications
Parameter | Specification |
|---|---|
Form Factor | QSFP+ |
Data Rate | 40 Gb/s |
Transmission Technology | SWDM4 (4 lanes) |
Wavelength Channels | 850 nm / 880 nm / 910 nm / 940 nm |
Fibre Type | Multimode Fibre (OM3 / OM4) |
Connector Type | Duplex LC/UPC |
Maximum Link Distance | OM3: 240 m, OM4: 350 m |
Power Consumption | < 3.5 W |
Operating Case Temperature | 0 °C to 70 °C (Standard) |
Standards Compliance | QSFP+ MSA, SWDM MSA, IEEE 802.3ba, SFF-8636 |
Connector Interface | XLPPI electrical interface |
▶ Advantages for High-Speed Networks
High Bandwidth in a Compact Form
With 40 Gb/s in the compact QSFP+ form factor, the LQ-SW40-SR4C provides high-density port upgrades without sacrificing rack space.
Cost-Efficient Fibre Usage
Utilising SWDM4 technology enables reuse of existing duplex multimode fibre infrastructure, avoiding expensive re-cabling efforts.
Low Power and Thermal Footprint
With typical power consumption under 3.5 W, the module helps minimise cooling requirements and lowers total operational cost.
Interoperability and Standards Compliance
Full compliance with major industry standards and broad vendor compatibility ensure seamless integration in heterogeneous networks.
Future-Proof Fibre Infrastructure
Support for OM3/OM4 fibre with generous reach makes this module a scalable choice as networking demands increase.
▶ Ideal Applications
Data-centre spine and leaf switch uplinks
High-performance computing (HPC) and AI/ML cluster interconnects
Enterprise network upgrades from 10 G to 40 G
Fibre plant refresh cycles and optimisation
▶ Why Choose LINK-PP
Rigorous quality assurance and testing programme ensure reliability.
Broad compatibility with major switch vendors reduces vendor-lock-in risk.
Cost-effective design offering low power, high performance and extended reach.
Hot-pluggable QSFP+ form factor for fast deployment and serviceability.
▶ Conclusion
Upgrade your network confidently with the LINK-PP LQ-SW40-SR4C 40GBASE-SR SWDM4 module. It delivers high-speed, reliable, low-power, and vendor-agnostic performance, making it an ideal solution for data centres, enterprise networks, and server clusters. Future-proof your connectivity with minimal infrastructure changes and maximum performance.
Discover the LQ-SW40-SR4C
Explore the features and benefits of the LQ-SW40-SR4C 40G QSFP+ module for your network needs.
▶ FAQ
Q1: Is the LQ-SW40-SR4C compatible with my switches?
A: Yes, it is vendor-agnostic and tested to work with leading brands including Cisco, Arista, Dell, HPE/Aruba, Juniper, Mellanox, and more.
Q2: What type of fibre does this module support?
A: It supports standard multimode fibre (MMF) types OM3 and OM4 with duplex LC/UPC connectors.
Q3: What is SWDM4 technology?
A: SWDM4 (Short Wavelength Division Multiplexing) transmits four 10 Gb/s signals over duplex multimode fibre using four wavelengths (850 nm / 880 nm / 910 nm / 940 nm), achieving 40 Gb/s aggregate speed efficiently.
Q4: Can I use this module for upgrading existing 10G links?
A: Absolutely. The LQ-SW40-SR4C is ideal for cost-effective 10G-to-40G upgrades without replacing fibre cabling.
Q5: Can I purchase in bulk for large-scale deployments?
A: Yes, LINK-PP offers volume pricing options for data centre or enterprise-scale installations.
▶ See Also
The Advantages of LINK-PP 100G Transceivers for Fast Connections
Overview of LINK-PP LS-DW2810-40I SFP+ 10G DWDM Module
Exploring LINK-PP LQD-CW400-LR4C 400G QSFP-DD Optical Solution
