StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4

Designed for high-density, high-demand networks, the StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 delivers reliable 40 Gigabit Ethernet connectivity over single-mode fiber with impressive reach. This uncoded QSFP+ transceiver adheres to the MSA standard, ensuring broad compatibility across a wide range of switches, routers, and servers. With a 1310 nm laser, LC duplex connectors, and Digital Diagnostics Monitoring (DDM), it provides an optimal balance of performance, manageability, and value for data centers, campus networks, and inter-data-center links. Whether you’re upgrading core uplinks, consolidating data center fabrics, or extending network distances, this module is engineered to simplify integration, maximize uptime, and scale with your evolving infrastructure.

• Broad compatibility and industry-standard design: The uncoded QSFP+ 40GBASE-LR4 module follows standard MSA guidelines, facilitating cross-vendor interoperability and reducing integration friction in heterogeneous environments.
• Long-reach single-mode fiber capability: Operating at 1310 nm, this transceiver supports links up to 10 kilometers on SMF, making it ideal for data center interconnects, campus backbones, and metro deployments that demand distance without compromising performance.
• High-density, plug-and-play form factor: QSFP+ packaging enables multiple 40G uplinks in a compact footprint, while its hot-swappable design minimizes downtime during maintenance and upgrades in densely populated racks.
• Advanced monitoring for reliability: Digital Diagnostics Monitoring (DDM) provides real-time visibility into optical power, temperature, voltage, and other important metrics, empowering proactive maintenance and rapid fault isolation.
• Efficient, scalable 40GbE performance: Engineered to deliver consistent 40 Gbps throughput across long-distance links, this module helps future-proof data centers and supports high-bandwidth applications with stable, predictable performance.

Technical Details of StarTech.com MSA Uncoded QSFP+ Module

• Product Type: QSFP+ Transceiver, 40GBASE-LR4, Uncoded
• Data Rate: 40 Gbps
• Wavelength: 1310 nm
• Fiber Type: Single-Mode Fiber (SMF)
• Connector: LC duplex
• Reach: Up to 10 km
• Form Factor: QSFP+ hot-swappable transceiver
• Diagnostics: Digital Diagnostics Monitoring (DDM)
• Compliance: IEEE 802.3ba 40GBASE-LR4, MSA Uncoded
• Manufacturer: StarTech.com

How to install StarTech.com MSA Uncoded QSFP+ Module

• Prepare the system: Power down the device or verify hot-swap compatibility per vendor guidelines. Ensure the chassis or switch is supported for QSFP+ field upgrades to avoid interface disruption.
• Locate the correct slot: Identify an appropriate QSFP+ port in your switch, router, or server network device. Confirm there is an available, properly cooled bay to accommodate the module.
• Align and insert: Hold the module with proper orientation and gently slide it into the slot until it seats with a secure click. Do not force the module; misalignment can damage the connector.
• Secure and connect fiber: If the chassis uses latches, engage them to secure the module. Attach LC duplex fiber patch cords, ensuring the transmit (TX) and receive (RX) paths match your topology and that polarity is correct for your link.
• Verify operation: Power on the device (if required) and access the management interface to confirm link status. Verify that the port negotiates to 40GBASE-LR4, and perform basic throughput checks to validate performance prior to production use.

Frequently asked questions

• What is 40GBASE-LR4? A 40 Gbps Ethernet standard that uses four 10 Gbps lanes over single-mode fiber with a 1310 nm wavelength, intended for long-reach links up to 10 km, typically via an LC duplex connector in a QSFP+ form factor.
• What fiber type do I need? Single-mode fiber (SMF) with 1310 nm operation. Use appropriate LC duplex fiber patch cables and ensure proper mode conditioning for best results.
• Is this module hot-swappable? Yes. The StarTech.com MSA Uncoded QSFP+ Module is designed for hot-swapping in compatible switches and network devices that support QSFP+ modules, minimizing downtime during upgrades.
• What is Digital Diagnostics Monitoring (DDM)? DDM provides real-time data about critical operating parameters such as optical power, temperature, and supply voltage. This helps with proactive health checks and rapid troubleshooting.
• What does “uncoded” mean in this context? An uncoded QSFP+ module adheres to the MSA standard without vendor-specific coding on the transmitted signal, supporting broader cross-vendor interoperability. Always verify that your target devices support uncoded LR4 modules for seamless operation.
• Can I mix this with other 40GBASE-LR4 modules? In many cases yes, but cross-vendor compatibility can vary by hardware revision and firmware. Always consult your device’s compatibility matrix or test in a controlled environment before deploying in production.
• How can I monitor performance? Use the switch management interface to monitor link status, throughput, and the DDM data. Regular checks help ensure the link remains healthy and within specified parameters.