Category Archives: 40G QSFP+

How to Choose 40G QSFP+ Modules for Multimode Applications?

With the popularity of 40G QSFP+ modules in datacom industry, there are more alternatives for choose to replace the traditional 40GBASE-SR4 QSFP+ modules for multimode applications. To choose the most proper 40G QSFP+ modules for your applications not only offers … Continue reading

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Optics Use Cases for 40 Gigabit Ethernet Connectivity

The 40 Gigabit Ethernet (GbE), used in today’s networks as the preferred spine uplink technology, has become commonplace in data centers. With the rise of 40GbE QSFP+ optics market, various of optics solutions are available, which offer users a lot … Continue reading

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Use 40G BiDi QSFP+ to Transmit Over DLC MMF Cabling

As we know, the most commonly used solution for 40GbE multimode application is based on the interface standard QSFP-40G-SR4, which is running over multimode fiber (MMF) pre-terminated with 8-fiber MPO/MTP connectors. This causes a problem of fiber waste of the existing … Continue reading

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40G QSFP+ Optics, DAC Cable, AOC Cable– Which Is More Cost-Effective?

For direct cabling between two devices using 40G QSFP+ port, there are several options including 40G QSFP+ transceiver option, 40G QSFP+ DAC Cable (Direct Attach Copper) cable, and 40G QSFP+ AOC Cable (Active Optical Cable). Among these options, each of them has its … Continue reading

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QSFP+ SR4 vs QSFP+ LR4

The QSFP+ transceiver is the dominant transceiver form factor used for 40GbE (Gigabit Ethernet) applications. In 2010 the IEEE standard 802.3ba released several 40GbE standard and along with the general specification, defined a number of fiber optic interfaces. These standard … Continue reading

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