Arista Compatible QSFP-40G-PLRL4 – 40GBASE-PLR4L QSFP+ 4x10G, 1310nm, 2km DOM SMF MPO/MTP

The Arista Compatible QSFP-40G-PLRL4 from ENET Solutions is a high-performance, OEM-compatible optics module designed to deliver reliable 40GBASE-PLR4L connectivity in data centers using Arista networks. This 4x10G QSFP+ transceiver is engineered to be functionally identical to Arista’s own QSFP-40G-PLRL4L, ensuring seamless interoperability with Arista switches and a broad range of PLR4L-capable devices. Built for long-haul links over single-mode fiber, it combines 1310 nm transmission, robust reach, and intelligent diagnostics to help network engineers scale capacity, simplify deployments, and reduce total cost of ownership. Whether you’re refreshing an aging fabric, expanding a high-density spine-leaf topology, or deploying a new multi-site link, this module provides a dependable, plug-and-play solution that aligns with industry standards and vendor expectations. ENET Solutions emphasizes compatibility, supply chain flexibility, and comprehensive support—delivering a product that pairs strong performance with the assurance of a trusted distributor for network peripherals and optics.

• 4x10G QSFP+ performance with 1310 nm SMF optics: This transceiver consolidates four independent 10G channels into a single QSFP+ package, delivering a total bandwidth of up to 40 Gbps while maintaining excellent reach and optical performance over single-mode fiber (SMF). The 1310 nm wavelength is optimized for low attenuation and high signal integrity across typical data-center links, enabling stable long-haul links up to the specified range in PLR4L configurations.
• 2 km reach on SMF with MPO/MTP interface: Engineered for short-to-mid reach deployments, the PLRL4L module supports distances up to approximately 2 kilometers on standard SMF when paired with an appropriate MPO/MTP fiber assembly. This makes it well-suited for campus interconnects, data-center interconnects, and aggregation layers where distance and fiber stability are critical considerations.
• Digital Diagnostics Monitoring (DOM) and onboard visibility: The module includes Digital Diagnostics Monitoring to provide real-time insight into critical operating parameters such as optical transmit and receive power, temperature, and supply voltage. DOM supports proactive health checks, easier fault isolation, and easier capacity planning, helping administrators optimize performance and uptime across the network.
• OEM-compatible, Arista-ecosystem ready: While built as a cost-effective alternative to Arista-branded PLR4L modules, this QSFP+ transceiver is designed for seamless integration with Arista switches and other PLR4L-compatible platforms. It offers the same electrical and optical characteristics expected by network engineers, ensuring compatibility, reduced latency in procurement, and a straightforward replacement process without requiring firmware or configuration changes.
• Durable construction, certification-ready for data centers: The module adheres to rigorous industry standards and is tested to meet the demanding reliability requirements of modern data-center operations. Its robust mechanical and optical design supports hot-swapping in supported environments, minimizes downtime during swaps, and aligns with enterprise-grade service expectations. ENET Solutions backs this product with compatibility guarantees and post-purchase support to ease deployment and ongoing operations.

Technical Details of Arista Compatible QSFP-40G-PLRL4

• Data Rate: 40 Gbps total (4x10G lanes)
• Application: 40GBASE-PLR4L (PLR4L) over SMF
• Wavelength: 1310 nm
• Fiber Type: Single-Mode Fiber (SMF)
• Reach: Up to approximately 2 kilometers
• Connector: MPO/MTP interface
• Form Factor: QSFP+ package
• Diagnostics: Digital Diagnostics Monitoring (DOM) supported
• Compatibility: Functionally identical to Arista QSFP-40G-PLRL4L; OEM-compatible with Arista platforms and PLR4L-enabled networks
• Manufacturer: ENET Solutions (OEM-compatible optics and network peripherals)

how to install Arista Compatible QSFP-40G-PLRL4

To install this QSFP+ module, power down the target device only if your environment requires a non-hot-swappable insertion, otherwise follow your vendor’s hot-swap procedures. Remove the existing module from the QSFP+ slot with care, ensuring you discharge static electricity and avoid touching optical surfaces. Align the Arista Compatible QSFP-40G-PLRL4 with the slot and firmly seat the module until it clicks into place. After installation, re-seat any retention mechanisms and reassemble the chassis or panel as needed. Power up the device and verify that link LEDs indicate a successful connection for all four 10G channels. Use your management software to confirm the 40G link status and validate data throughput across the fabric. If Digital Diagnostics Monitoring is supported on the host, review DOM readings to ensure TX/RX power, temperature, and voltage are within expected ranges. Finally, confirm end-to-end connectivity by running a baseline throughput and BER test, and document the results for future reference. Maintain proper fiber handling practices: use correct SMF specifications, ensure the MPO/MTP connector alignment, and avoid bending or stressing the fiber cable to preserve signal integrity over the 2 km reach.

Frequently asked questions

• Q: Is the Arista Compatible QSFP-40G-PLRL4 truly compatible with Arista switches? A: Yes. It is designed to be functionally identical to the Arista QSFP-40G-PLRL4L and is intended for seamless interoperability with Arista platforms that support PLR4L modules. It provides the same electrical interfaces and optical performance expectations, allowing straightforward deployment in compatible environments.
• Q: What is the maximum reach and fiber type for this transceiver? A: The module supports up to about 2 kilometers over single-mode fiber (SMF). It uses a 1310 nm wavelength optimized for SMF, delivering stable, long-haul PLR4L performance in data-center and campus networks.
• Q: Does this transceiver support DOM? A: Yes. Digital Diagnostics Monitoring is available to provide real-time visibility into critical operating parameters, enabling proactive monitoring, quicker fault isolation, and improved maintenance planning.
• Q: What cable and connector are required? A: The module uses an MPO/MTP interface for the fiber connection and is designed to work with standard SMF fiber assemblies compatible with PLR4L applications. Proper MPO/MTP breakout or ribbon fiber configurations are recommended depending on your deployment.
• Q: Where can I source this module, and is it backed by warranty? A: ENET Solutions supplies OEM-compatible optics and network peripherals, including this QSFP-40G-PLRL4L-equivalent module. Warranty and support terms are provided by ENET Solutions, with engineering validation for Arista ecosystem compatibility.