LINK-PP Community

40GBASE-ER4: Reach, Compatibility, and Deployment Guide

LINK-PP Official

March 31, 2026

Learn what 40GBASE-ER4 is, how far it reaches over duplex single-mode fiber, what it supports, and how to choose the right QSFP+ optic.

SFP Issue: Causes, Fixes, and Troubleshooting Guide

LINK-PP Official

March 30, 2026

Learn how to fix SFP issues fast: no link light, link flapping, detection errors, compatibility problems, and optical power checks.

What is the difference between 1310nm and 850nm SFP?

SFP 850nm vs. 1310nm: Key Differences Explained

LINK-PP Official

March 30, 2026

Understand SFP 850nm vs 1310nm differences in fiber type, distance, cost, and use cases. Learn which SFP module is right for your network.

QSFP Data Rate: 40G, 50G, 100G, 200G, 400G and 800G Guide

QSFP Data Rate Explained: 40G to 800G Speed Guide

LINK-PP Official

March 30, 2026

Understand QSFP data rate from 40G to 800G, including QSFP+, QSFP28, and QSFP-DD. Compare speeds, lane structure, and choose the right module.

SFP Distance Explained: Real-World Range, Limits & Optics

SFP Distance Explained: Real-World Range, Limits, and Optics

LINK-PP Official

March 28, 2026

Understand SFP distance, fiber optic range, and real-world limits of SR/LR modules. Learn how wavelength, fiber type, and optics affect performance.

2.5 G Copper SFP (2.5GBASE-T): Complete Upgrade Guide

LINK-PP Official

March 27, 2026

Learn 2.5G Copper SFP (2.5GBASE-T), compatibility, Cat5e/Cat6 support, 100m reach, and why it bridges 1G and 10G Ethernet upgrades.

2.5 Gbps SFP Module Guide: Speed, Compatibility & Use Cases

2.5 Gbps SFP Module Guide: Compatibility and Performance

LINK-PP Official

March 27, 2026

Learn what a 2.5 Gbps SFP module is, how it works, and compatibility with SFP+ ports. Explore performance insights, standards, and buying tips.

GLC-SX-MMD 1000BASE-SX SFP Transceiver Module MMF 850nm DOM

LINK-PP Official

March 27, 2026

Complete guide to GLC-SX-MMD 1000BASE-SX SFP module: specs, MMF vs SMF, DOM features, compatibility, and best alternatives for cost-effective deployment.

QSFP28 MSA Explained: Compatibility, Standards, and Risks

LINK-PP Official

March 26, 2026

Understand QSFP28 MSA standards, compatibility limits, and real-world risks. Learn how to choose reliable 100G optics and avoid deployment failures.

How to Test SFP Transceiver: A Practical Lab Guide

LINK-PP Official

March 26, 2026

Learn how to test an SFP transceiver with the right tools, methods, and pass/fail points for optical power, BER, eye diagram, DDM, and compatibility.

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