Our QSFP28 100G series represents a comprehensive, high-performance portfolio designed to address the full spectrum of modern data center and metro network connectivity needs. Built within the industry-standard QSFP28 form factor, this series offers a versatile solution for upgrading network infrastructure to 100 Gigabit Ethernet, balancing performance, density, and power efficiency across diverse reach requirements and fiber types.

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The portfolio is structured around key technology paths to simplify selection. For cost-effective, high-density multimode fiber links within a data hall, the SR4 supports up to 100m. For parallel single-mode fiber (SMF) infrastructure, the PSM4 enables 500m reach. Leveraging wavelength division multiplexing for superior fiber efficiency, the CWDM4 and LR4 modules support 2km and 10km over duplex LC SMF, respectively, while the ER4/ER4 Lite extends this to 40km for metro applications. Complementing these, our advanced single-lane PAM4 solutions-the DR1 (500m), FR1 (2km), and LR1 (10km)-deliver 100G over a single wavelength, maximizing simplicity for duplex LC fiber plants. All modules ensure reliable operation within a 0°C to 70°C temperature range, providing a complete, future-ready foundation for any 100G deployment scenario.

FAQ

Q: Beyond the product itself, what support do you offer for planning and deploying these 100G solutions?

A: We provide support beyond just selling modules. This can include pre-sales consultation to help select the right model, review of compatibility and fiber readiness, and access to technical documentation and application notes. Our goal is to help ensure your 100G upgrade is successful from planning to deployment.

Q: What does "ER4 Lite" mean, and how do I choose between it and the standard ER4?

A: ER4 Lite is typically an optimized version for a specific, slightly shorter distance (like 30km) with potentially lower cost and power consumption than a full 40km ER4 module. Choose ER4 Lite if your link is reliably under 40km (e.g., a 25km metro link) to potentially save on costs. Choose the standard ER4 if you need the full 40km reach or extra power budget margin.

Q: There are so many types in this QSFP28 100G series (SR4, PSM4, CWDM4, etc.). What is the simplest way to figure out which one I need?

A: A simple way to choose is to focus on two key factors: Distance and Fiber Type. First, determine how far you need to connect (e.g., within a rack, across a campus, or between cities). Then, identify if you are using Multi-Mode Fiber or Single-Mode Fiber. Our selection chart or a quick consultation with our team can then point you to the right model (like SR4 for 100m MMF or LR4 for 10km SMF).

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