Cisco QSFP-40G-LR4 QSFP 40GBase-LR4 Transceiver Module, LC, 10KM

Overview
The Cisco QSFP-40G-LR4 is a high performance 40GBase-LR4 transceiver module designed for long reach single mode fiber applications. It delivers reliable 40 Gigabit Ethernet connectivity up to 10 km using LC duplex connectors, making it ideal for data center interconnects, campus networks and carrier backbones. Built to Cisco standards, this module ensures seamless integration with Cisco QSFP ports and supports a wide range of Cisco switching and routing platforms.

Key Features

• 40 Gbps data rate per port with four parallel lanes
• Long reach up to 10 km on standard single mode fiber (OS2)
• LC duplex connector for easy fiber management
• Hot-pluggable design for non-disruptive upgrades
• Low power consumption and optimized thermal performance
• Full compliance with IEEE 802.3ba and Cisco interoperability standards

Technical Specifications

• Form factor: QSFP (Quad Small Form Factor Pluggable)
• Wavelength: 1310 nm
• Fiber type: Single mode OS2
• Reach: 10 km (up to 12 km with enhanced fiber)
• Connector type: LC duplex
• Power draw: typical 3.5 W per module
• Operating temperature: 0 to 70 degrees C
• Dimensions: 13.5 mm x 84.5 mm x 8.5 mm (height x width x depth)

Typical Applications

• Data center interconnects between server farms and storage arrays
• Campus backbone links that require high bandwidth over long distances
• Metro Ethernet and carrier networks supporting 40G Ethernet services
• High performance computing clusters needing low latency and high throughput
• Enterprise WAN extensions where fiber infrastructure is already in place

Choose the Cisco QSFP-40G-LR4 transceiver for dependable, high-speed connectivity that scales with your network growth while maintaining low power and easy deployment.