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

Overview

The Extreme Networks 40G-LR4-QSFP10KM is a QSFP+ optical transceiver designed for 40 Gigabit Ethernet networks using single-mode fiber. It delivers data transfer speeds up to 40 Gbps while supporting distances up to 6.2 miles (10 km) under the 40GBase-LR4 standard. This module is ideal for connecting switches, routers, or storage devices across long spans without compromising performance or signal quality.

Installation is simple and efficient: just insert the transceiver into any compatible QSFP+ port and connect the fiber cables. The link activates automatically without the need for additional configuration, making it a practical solution for campus backbones, data center interconnects, and service-provider edge networks that require fast deployment and scalability.

Key features

• Supports 40 Gbps data transfer to handle high-bandwidth applications and traffic aggregation
• Complies with the 40GBase-LR4 Ethernet protocol for reliable long-distance single-mode fiber connections
• Hot-swappable QSFP+ form factor allows quick replacement or upgrades without downtime
• MSA compliance ensures compatibility with equipment from multiple vendors, reducing vendor lock-in
• Robust build quality from Extreme Networks helps maintain stable operation and lowers maintenance costs

Key specs

• Data rate: 40 Gbps
• Standard: 40GBase-LR4 Ethernet
• Fiber type: Single-mode fiber
• Maximum reach: 6.2 miles (10 km)
• Form factor: QSFP+
• Compliance: MSA (Multi-Source Agreement)

Connectivity and compatibility

This transceiver fits into any QSFP+ port that supports 40GBase-LR4 modules, making it suitable for a wide range of network switches, routers, and storage devices. Its MSA compliance guarantees interoperability across different manufacturers, which simplifies network design and future upgrades. The single-mode fiber interface supports long-distance links, ideal for campus environments or metro area networks.

Ideal uses and environments

The 40G-LR4-QSFP10KM is well suited to enterprise data centers that require high-speed leaf-spine fabrics, service providers building metro access rings, and organizations connecting remote buildings or sites. Its long reach and plug-and-play nature make it a strong choice for networks that demand both performance and flexibility without complex setup procedures.