About This Part
The Arista QSFP-40G-LR4 is a high-performance, hot-pluggable optical transceiver module specifically engineered for 40 Gigabit Ethernet applications. Adhering to the IEEE 802.3ba 40GBASE-LR4 standard, this module provides robust long-reach connectivity over single-mode fiber. Its QSFP form factor ensures compatibility with a wide array of networking equipment from Arista and other vendors, facilitating high-density deployments. The transceiver operates by multiplexing four 10 Gbps optical lanes onto a single fiber pair, utilizing distinct LAN WDM (LWDM) wavelengths, typically centered around 1271 nm, 1291 nm, 1311 nm, and 1331 nm. This advanced optical technology enables reliable data transmission over distances up to 10 kilometers, making it ideal for interconnecting data centers, enterprise networks, and campus backbones. Featuring a duplex LC connector, the Part Number QSFP-40G-LR4 also supports Digital Diagnostics Monitoring (DDM) functions, allowing for real-time monitoring of critical parameters such as optical output power, input power, temperature, and supply voltage, which is crucial for network management and troubleshooting. The Arista QSFP-40G-LR4 transceiver is a critical component in modern high-speed network architectures, finding extensive deployment in data centers, large enterprise networks, and campus environments. It is typically installed in core and aggregation layer switches and routers, providing essential 40 Gigabit Ethernet uplinks and inter-switch links. This module is compatible with a wide range of Arista network platforms, including their acclaimed 7000 series switches, as well as other industry-standard QSFP-enabled equipment. Key users include cloud service providers, telecommunication carriers, financial institutions, and large-scale enterprises that require robust, long-distance connectivity between geographically dispersed network segments or within expansive data halls. The QSFP-40G-LR4 effectively solves the challenge of extending high-bandwidth links beyond the limitations of short-reach optics or copper cabling, facilitating efficient data transfer over distances up to 10 kilometers. It serves as an ideal upgrade path for organizations transitioning from 10 Gigabit Ethernet infrastructure, enabling significant bandwidth increases without extensive fiber plant overhauls. For B2B clients seeking cost-effective and reliable infrastructure solutions, Revo Distribution Limited offers used and refurbished units of the Arista QSFP-40G-LR4. Acquiring these high-quality, pre-owned transceivers from Revo allows telecom operators, data center providers, and large enterprises to significantly reduce capital expenditure while maintaining high performance standards. Our meticulously tested and certified inventory enables clients to expand or upgrade their networks efficiently, providing access to essential components like the QSFP-40G-LR4 without the lead times or premium costs associated with new equipment. By supplying refurbished modules, Revo actively contributes to the circular economy, extending the operational lifecycle of existing infrastructure and minimizing electronic waste. This approach not only supports sustainable practices but also empowers businesses to optimize their IT budgets, ensuring their networks remain agile and competitive in a rapidly evolving digital landscape. Revo's commitment to quality ensures that every refurbished QSFP-40G-LR4 unit meets stringent performance criteria, delivering the reliability expected in mission-critical environments.
