Cisco QSFP-40G-LR4-S QSFP+ 40G LR4 1310nm 10km Reach LC Transceiver (New Sealed)

The Cisco QSFP-40G-LR4-S is a high-performance 40 Gigabit Ethernet QSFP+ transceiver designed for long-range data transmission over single-mode fiber (SMF). It supports 40GBASE-LR4 connectivity with a transmission distance of up to 10 kilometers, making it ideal for enterprise networks, data centers, and service provider environments requiring reliable high-speed connectivity. The module operates at a 1310 nm wavelength and features duplex LC connectors for stable optical performance. Its hot-swappable QSFP+ form factor ensures easy installation and maintenance while maintaining low power consumption and excellent interoperability with compatible Cisco networking equipment. The hot-swappable architecture allows easy installation and replacement without interrupting network operations, reducing downtime and simplifying maintenance procedures. Optimized for low power consumption and high reliability, the QSFP-40G-LR4-S is suitable for mission-critical networking environments where performance, scalability, and operational efficiency are essential. This transceiver is fully compatible with a wide range of Cisco switches and routers that support QSFP+ interfaces, ensuring seamless integration into existing Cisco networking infrastructures. Its enterprise-grade build quality and compliance with industry standards make it a dependable choice for organizations seeking secure, high-capacity, and future-ready optical networking solutions. The module also supports digital optical monitoring (DOM), allowing administrators to monitor real-time operating parameters such as temperature, voltage, optical transmit power, and receive power for improved network visibility and maintenance.

Key Specifications

• Data Rate: Supports 40 Gigabit Ethernet connectivity for high-speed enterprise and data center networking

• Networking Standard: Complies with the 40GBASE-LR4 standard for reliable long-distance fiber optic communication

• Fiber Type: Operates over single-mode fiber (SMF) for stable and efficient long-range connectivity

• Transmission Distance: Supports transmission distances up to 10 kilometers over single-mode fiber cabling

• Connector Type: Uses duplex LC connector interface for secure and high-quality optical connections

• Form Factor: Hot-swappable QSFP+ design enables easy installation and replacement without network downtime

• Monitoring Support: Integrated Digital Optical Monitoring (DOM) provides real-time diagnostics and performance tracking

• Power Efficiency: Low power consumption design improves energy efficiency in high-density network deployments

• Compatibility: Compatible with supported QSFP+ ports on switches, routers, and enterprise networking equipment

• Application Support: Ideal for core networks, aggregation layers, cloud infrastructure, and large-scale data centers

• Physical Design: Compact and durable module construction ensures dependable long-term networking performance

• Channel Architecture: Supports four independent full-duplex channels for optimized high-bandwidth data transmission

• Signal Performance: Advanced optical technology helps maintain stable signal integrity and reduced network latency

• Deployment Environment: Designed for seamless integration into enterprise, campus, and service provider networks

• Scalability: Simplifies scalable 40G network expansion with reliable long-range fiber connectivity