Extreme Networks 40Gb Ethernet 40GBase-LR4 QSFP+ Transceiver

The Extreme Networks 40G-LR4-QSFP10KM is a QSFP+ optical transceiver created for 40 Gigabit Ethernet networks that rely on single-mode fiber. It pushes up to 40 Gbps of data while following the 40GBase-LR4 standard, so you can bridge switches, routers, or storage nodes across spans as long as 6.2 miles without sacrificing speed or signal integrity.

Installation is straightforward. Slide the module into any compatible QSFP+ port, connect the fiber pair, and the link comes online with no additional tuning. This simplicity makes the transceiver a practical choice for campus backbones, data center interconnects, or service-provider edge environments where rapid scaling is a priority.

Because the module is MSA compliant, it integrates cleanly alongside equipment from multiple vendors. That interoperability, combined with the solid build quality Extreme Networks is known for, helps keep long-term operating costs in check and reduces the need for proprietary spares.

Whether you are extending a leaf-spine fabric inside a data center, aggregating traffic between remote buildings, or upgrading a metro access ring, the 40G-LR4-QSFP10KM offers a blend of speed, reach, and plug-and-play convenience that fits demanding enterprise and service-provider workloads.

• Transfers data at up to 40 Gbps
• Uses the 40GBase-LR4 Ethernet protocol for 40 Gigabit links
• Supports single-mode fiber runs up to 6.2 miles (approximately 10 km)
• QSFP+ hot-swappable module for quick installation
• MSA compliant to ensure multi-vendor interoperability