QSFP28 4WDM-40 vs.CWDM4

A Comparison of QSFP28 4WDM and QSFP28 CWDM4

Both 4WDM and CWDM4 belong to 100G QSFP28 series optical transceiver and are certainly related to WDM (wavelength division multiplexing)tech. Maybe there are still people confused about what differences between QSFP28 4WDM and QSFP28 CWDM4 optical transceiver are. An Introduction to 100G QSFP28 4WDM Optical Transceiver 4WDM(4-Wavelength Wavelength Division Multiplexing) optical module is defined by 4WDM MSA, targeted for longer…

qsfp28 cwdm4

Things You Should Know about QSFP28 CWDM4

It’s known that QSFP28 optics play a key part in current 100G Ethernet, in which 2 km 100G QSFP28 CWDM4 stands out. To some degree, its appearance satisfies the requirements for both low cost and long transmission distance in the data center. Today, this article will have an introduction to 100G QSFP28 CWDM4 in these aspects, such as CWDM4 MSA,…

qsfp28 psm4 optics

Things You Should Know about PSM4

In the current interconnection market, 100G QSFP28 transceiver has become a common trend of Ethernet due to its higher bandwidth, high data rate, lower cost and so on. To further keep pace with the market demands, many series of QSFP28 optical transceivers come into the data center, such as QSFP28 100GBASE-SR4/LR4, QSFP28 100GBASE-PSM4, QSFP28 100GBASE-CWDM4 and so on, in which…