Cisco QSFP-40G-LR4-S=

Overview

The Cisco QSFP-40G-LR4-S= is a 40 Gigabit Ethernet transceiver module designed to provide high-speed connectivity over single-mode fiber. Operating at a wavelength of 1310 nm, it supports data transmission distances up to 10 kilometers, making it suitable for data centers, enterprise networks, and high-performance computing environments. Its compact plug-in design allows for easy integration into existing network hardware, delivering reliable and consistent performance for core and distribution layer applications.

Key features

• Supports 40Gbps data transfer rate to handle demanding network traffic efficiently
• Uses 40GBase-LR4 Ethernet protocol optimized for long-reach single-mode fiber connections
• Compact QSFP+ form factor enables high port density and easy installation in network switches and routers
• Operates at 1310 nm wavelength with a transmission range of up to 10 kilometers, ideal for extended network links
• Low power consumption helps maintain energy efficiency in dense networking environments
• Complies with industry standards to ensure broad compatibility and reliable operation across various deployments
• Durable design backed by a 1-year warranty for peace of mind in critical network infrastructure

Key specs

• Data rate: 40 Gbps
• Form factor: QSFP+
• Ethernet protocol: 40GBase-LR4
• Wavelength: 1310 nm (range 1271 nm to 1331 nm)
• Maximum transmission distance: 10 km (6.2 miles)
• Fiber type: Single-mode fiber
• Dimensions: 0.5 inches high, 0.7 inches wide, 2.9 inches deep
• Warranty: 1 year

Connectivity and compatibility

This transceiver module is designed to fit seamlessly into Cisco network equipment that supports QSFP+ interfaces, enabling straightforward upgrades or expansions of existing 40GbE infrastructure. Its adherence to 40GBase-LR4 standards ensures compatibility with a wide range of single-mode fiber optic cabling and network devices, making it a flexible choice for various network topologies.

Ideal uses and environments

The Cisco QSFP-40G-LR4-S= is well suited for environments requiring stable, high-speed fiber connections over long distances. It works effectively in data centers where core switches need to connect across large facilities, enterprise networks that span multiple buildings, and high-performance computing clusters demanding low-latency, high-bandwidth links. Its compact size and low power draw also make it a practical option for dense networking racks where space and energy efficiency are priorities.

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